Nancy Potischman

Summary

Affiliation: National Institutes of Health
Country: USA

Publications

  1. pmc Invited commentary: are dietary intakes and other exposures in childhood and adolescence important for adult cancers?
    Nancy Potischman
    Division of Cancer Control and Population Sciences, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892 9762, USA
    Am J Epidemiol 178:184-9. 2013
  2. pmc Can we use biomarkers in combination with self-reports to strengthen the analysis of nutritional epidemiologic studies?
    Laurence S Freedman
    Biostatistics Unit, Gertner Institute for Epidemiology, Tel Hashomer 52161, Israel
    Epidemiol Perspect Innov 7:2. 2010
  3. ncbi request reprint Increased risk of early-stage breast cancer related to consumption of sweet foods among women less than age 45 in the United States
    Nancy Potischman
    Division of Cancer Control and Population Studies, Centers for Disease Conztrol annd Prevention, Atlanta, GA, USA
    Cancer Causes Control 13:937-46. 2002
  4. ncbi request reprint Biologic and methodologic issues for nutritional biomarkers
    Nancy Potischman
    National Cancer Institute, Bethesda, MD 20892, USA
    J Nutr 133:875S-880S. 2003
  5. ncbi request reprint Pregnancy hormone concentrations across ethnic groups: implications for later cancer risk
    Nancy Potischman
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 4005 EPN, 6130 Executive Boulevard, Bethesda, Maryland 20892 7344, USA
    Cancer Epidemiol Biomarkers Prev 14:1514-20. 2005
  6. ncbi request reprint Dietary recommendations and identified research needs for The National Children's Study
    Nancy Potischman
    Applied Research Program Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892 7344, USA
    J Nutr 136:686-9. 2006
  7. doi request reprint Strength of the relationships between three self-reported dietary intake instruments and serum carotenoids: the Observing Energy and Protein Nutrition (OPEN) Study
    Stephanie M George
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Blvd, EPN 4017A, Bethesda, MD 20892, USA
    Public Health Nutr 15:1000-7. 2012
  8. ncbi request reprint Estrogen and androgen concentrations are not lower in the umbilical cord serum of pre-eclamptic pregnancies
    Rebecca Troisi
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
    Cancer Epidemiol Biomarkers Prev 12:1268-70. 2003
  9. pmc Anthropometric correlates of insulin-like growth factor 1 (IGF-1) and IGF binding protein-3 (IGFBP-3) levels by race/ethnicity and gender
    Jessica M Faupel-Badger
    Cancer Prevention Fellowship Program, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Ann Epidemiol 19:841-9. 2009
  10. pmc Sugars and risk of mortality in the NIH-AARP Diet and Health Study
    Natasha Tasevska
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda, MD NT, AFS, and NP the Nutrition Program, School of Nutrition and Health Promotion, Arizona State University, Phoenix, AZ NT the Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD YP and LJ the Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX LJ and the AARP, Washington, DC AH
    Am J Clin Nutr 99:1077-88. 2014

Detail Information

Publications46

  1. pmc Invited commentary: are dietary intakes and other exposures in childhood and adolescence important for adult cancers?
    Nancy Potischman
    Division of Cancer Control and Population Sciences, National Cancer Institute, 9609 Medical Center Drive, Bethesda, MD 20892 9762, USA
    Am J Epidemiol 178:184-9. 2013
    ..Sources of historical data on children's and adolescents' exposures should be sought and evaluated in conjunction with subsequent exposures in relationship to adult-onset cancers. ..
  2. pmc Can we use biomarkers in combination with self-reports to strengthen the analysis of nutritional epidemiologic studies?
    Laurence S Freedman
    Biostatistics Unit, Gertner Institute for Epidemiology, Tel Hashomer 52161, Israel
    Epidemiol Perspect Innov 7:2. 2010
    ....
  3. ncbi request reprint Increased risk of early-stage breast cancer related to consumption of sweet foods among women less than age 45 in the United States
    Nancy Potischman
    Division of Cancer Control and Population Studies, Centers for Disease Conztrol annd Prevention, Atlanta, GA, USA
    Cancer Causes Control 13:937-46. 2002
    ..To evaluate the associations of dietary macronutrients, food groups, and eating patterns with risk of breast cancer in a population-based case-control study...
  4. ncbi request reprint Biologic and methodologic issues for nutritional biomarkers
    Nancy Potischman
    National Cancer Institute, Bethesda, MD 20892, USA
    J Nutr 133:875S-880S. 2003
    ..The advantages and disadvantages of nutritional biomarkers are reviewed, especially in comparison with using dietary methodology...
  5. ncbi request reprint Pregnancy hormone concentrations across ethnic groups: implications for later cancer risk
    Nancy Potischman
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 4005 EPN, 6130 Executive Boulevard, Bethesda, Maryland 20892 7344, USA
    Cancer Epidemiol Biomarkers Prev 14:1514-20. 2005
    ..These data are consistent with hypotheses that in utero hormonal exposures may explain some of the ethnic group differences in cancer risk...
  6. ncbi request reprint Dietary recommendations and identified research needs for The National Children's Study
    Nancy Potischman
    Applied Research Program Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892 7344, USA
    J Nutr 136:686-9. 2006
    ..This paper presents the research needs identified through the process followed to provide the NCS with recommendations for the collection of dietary intake data...
  7. doi request reprint Strength of the relationships between three self-reported dietary intake instruments and serum carotenoids: the Observing Energy and Protein Nutrition (OPEN) Study
    Stephanie M George
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Blvd, EPN 4017A, Bethesda, MD 20892, USA
    Public Health Nutr 15:1000-7. 2012
    ..To assess the strength of the relationships between serum carotenoids and three self-reported dietary intake instruments often used to characterize carotenoid intake in studies of diet and disease...
  8. ncbi request reprint Estrogen and androgen concentrations are not lower in the umbilical cord serum of pre-eclamptic pregnancies
    Rebecca Troisi
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
    Cancer Epidemiol Biomarkers Prev 12:1268-70. 2003
    ..06 and P = 0.12, respectively). These data do not support the hypothesis that the lower breast cancer risk in daughters of pre-eclamptic pregnancies is explained by lower in utero estrogen exposure...
  9. pmc Anthropometric correlates of insulin-like growth factor 1 (IGF-1) and IGF binding protein-3 (IGFBP-3) levels by race/ethnicity and gender
    Jessica M Faupel-Badger
    Cancer Prevention Fellowship Program, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Ann Epidemiol 19:841-9. 2009
    ..S. population-based study where these associations could also be stratified by race/ethnicity and gender...
  10. pmc Sugars and risk of mortality in the NIH-AARP Diet and Health Study
    Natasha Tasevska
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda, MD NT, AFS, and NP the Nutrition Program, School of Nutrition and Health Promotion, Arizona State University, Phoenix, AZ NT the Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD YP and LJ the Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX LJ and the AARP, Washington, DC AH
    Am J Clin Nutr 99:1077-88. 2014
    ..Although previous studies have linked intake of sugars with incidence of cancer and other chronic diseases, its association with mortality remains unknown...
  11. pmc Sugars in diet and risk of cancer in the NIH-AARP Diet and Health Study
    Natasa Tasevska
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892 7242, USA
    Int J Cancer 130:159-69. 2012
    ..Measurement error in FFQ-reported dietary sugars may have limited our ability to obtain more conclusive findings. Statistically significant associations observed for the rare cancers are of interest and warrant further investigation...
  12. pmc Ovarian volumes among women with endometrial carcinoma: associations with risk factors and serum hormones
    Mark E Sherman
    National Cancer Institute, Division of Cancer Epidemiology and Genetics, Hormonal and Reproductive Epidemiology Branch, 6120 Executive Boulevard, Rockville, MD 20852 7234, USA
    Gynecol Oncol 107:431-5. 2007
    ..Accordingly, we assessed ovarian volumes in relation to serum sex hormone levels among post-menopausal women with endometrial carcinoma who participated in a multi-center case-control study...
  13. pmc Assessment of the accuracy of portion size reports using computer-based food photographs aids in the development of an automated self-administered 24-hour recall
    Amy F Subar
    National Cancer Institute, Division of Cancer Control and Population Sciences, Applied Research Program, Risk Factor Monitoring and Methods Branch, Bethesda, MD 20892 7344, USA
    J Am Diet Assoc 110:55-64. 2010
    ..To assess the accuracy of portion-size estimates and participant preferences using various presentations of digital images...
  14. ncbi request reprint Associations of maternal and umbilical cord hormone concentrations with maternal, gestational and neonatal factors (United States)
    Rebecca Troisi
    Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Blvd, Bethesda, MD 20892 7246, USA
    Cancer Causes Control 14:347-55. 2003
    ..However, data on hormonal levels related to these characteristics of pregnancy are sparse, particularly those from studies of the fetal circulation...
  15. pmc Adolescent and mid-life diet: risk of colorectal cancer in the NIH-AARP Diet and Health Study
    Elizabeth H Ruder
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Rockville, MD, USA
    Am J Clin Nutr 94:1607-19. 2011
    ..Colorectal cancer has a natural history of several decades; therefore, the diet consumed decades before diagnosis may aid in understanding this malignancy...
  16. pmc Reactivity and its association with body mass index across days on food checklists
    Sharon I Kirkpatrick
    Risk Factor Monitoring and Methods Branch, Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Boulevard, EPN 4005 Bethesda, MD 20892, USA
    J Acad Nutr Diet 112:110-8. 2012
    ..However, the effects are generally small and independent of body weight, suggesting that checklists are potentially useful for the study of body weight and diet...
  17. pmc Race/ethnic variation in serum levels of IGF-I and IGFBP-3 in US adults
    David Berrigan
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Executive Plaza North MSC 7344, Bethesda, MD 20892 7344, USA
    Growth Horm IGF Res 19:146-55. 2009
    ..This paper reports on race/ethnic variation in serum levels of IGF-I and IGF-BP3 in a nationally representative and ethnically diverse sample of US adults...
  18. ncbi request reprint Maternal androgen and estrogen concentrations are not associated with blood pressure changes in uncomplicated pregnancies
    Rebecca Troisi
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Boulevard, Bethesda, MD 20892 7246, USA
    Cancer Epidemiol Biomarkers Prev 15:2013-5. 2006
    ..These data are not consistent with the hypothesis that elevated androgen concentrations mediate the observed reduction in maternal breast cancer risk associated with increases in blood pressure over the pregnancy...
  19. pmc Pregnancy weight gain is not associated with maternal or mixed umbilical cord estrogen and androgen concentrations
    Jessica M Faupel-Badger
    Division of Cancer Prevention and Mammary Biology and Tumorigenesis Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 7105, USA
    Cancer Causes Control 20:263-7. 2009
    ..Our results are not consistent with an effect of pregnancy weight gain being mediated by this pathway as reflected by hormone concentrations at the end of pregnancy...
  20. pmc Association of serum sex steroid hormone hemodilution and body mass index among healthy postmenopausal women
    Hannah P Yang
    Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    Ann Epidemiol 21:466-71. 2011
    ..Assessing the relationship of hormone concentration to total mass varies by body mass index (BMI) is etiologically important because obesity is related to hormone metabolism and cancer risk...
  21. ncbi request reprint Correlation of serum hormone concentrations in maternal and umbilical cord samples
    Rebecca Troisi
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland 20892, USA
    Cancer Epidemiol Biomarkers Prev 12:452-6. 2003
    ..Studies using maternal hormone concentrations as a proxy for the fetal environment should consider the misclassification resulting with the use of this marker...
  22. ncbi request reprint Maternal serum oestrogen and androgen concentrations in preeclamptic and uncomplicated pregnancies
    Rebecca Troisi
    Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892 7246, USA
    Int J Epidemiol 32:455-60. 2003
    ..Alterations in pregnancy hormone concentrations, particularly lower in utero exposure to oestrogen, are hypothesized to mediate this association...
  23. ncbi request reprint Plasma volume expansion in pregnancy: implications for biomarkers in population studies
    Jessica M Faupel-Badger
    Mammary Biology and Tumorigenesis Laboratory, Center for Cancer Research, National Cancer Institute, MSC 4254, 37 Convent Drive, Bethesda, MD 20892, USA
    Cancer Epidemiol Biomarkers Prev 16:1720-3. 2007
    ..We present PVE as a topic for consideration in population-based studies, examples of the types of studies where PVE may be relevant, and our own analysis of one such study in the text below...
  24. pmc Analysis of serum metabolic profiles in women with endometrial cancer and controls in a population-based case-control study
    Mia M Gaudet
    Epidemiology Research Program, American Cancer Society, 250 Williams Street, Atlanta, Georgia 30316, USA
    J Clin Endocrinol Metab 97:3216-23. 2012
    ..Identifying metabolite biomarkers associated with endometrial cancer may have value for early detection, risk assessment, and understanding etiology...
  25. ncbi request reprint Interrelationships between serum leptin, IGF-1, IGFBP3, C-peptide and prolactin and breast cancer risk in young women
    Roni T Falk
    Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD 20892, USA
    Breast Cancer Res Treat 98:157-65. 2006
    ..With the possible exception of leptin, our findings do not suggest that these markers explain the breast cancer protection provided by obesity in premenopausal women...
  26. pmc Observational epidemiologic studies of nutrition and cancer: the next generation (with better observation)
    Arthur Schatzkin
    National Cancer Institute, Bethseda, MD, USA
    Cancer Epidemiol Biomarkers Prev 18:1026-32. 2009
    ....
  27. doi request reprint Use of the predictive sugars biomarker to evaluate self-reported total sugars intake in the Observing Protein and Energy Nutrition (OPEN) study
    Natasa Tasevska
    Applied Research Program, Division of Cancer Control and Population Sciences, Nutritional Epidemiology, Branch, National Cancer Institute, 6130 Executive Blvd, EPN 3121, Bethesda, MD 20892, USA
    Cancer Epidemiol Biomarkers Prev 20:490-500. 2011
    ..A predictive biomarker for intake of total sugars was recently developed under controlled conditions. We used this biomarker to assess measurement error (ME) structure in self-reported intake of total sugars in free-living individuals...
  28. doi request reprint Challenges and opportunities in research on early-life events/exposures and cancer development later in life
    Somdat Mahabir
    Modifiable Risk Factors Branch, Epidemiology and Genetics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Blvd, Bethesda, MD 20892, USA
    Cancer Causes Control 23:983-90. 2012
    ..This in turn has the potential to transform cancer prevention strategies through interventions in early-life rather than later in life, as is the current practice, where it is perhaps less effective...
  29. ncbi request reprint Serum levels of insulin-like growth factor-I and insulin-like growth factor-I binding protein-3: quality control for studies of stored serum
    David Berrigan
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892 7344, USA
    Cancer Epidemiol Biomarkers Prev 16:1017-22. 2007
    ..Together, these results highlight the need for care in large studies of putative biomarkers for cancer risk and illustrate some probable sources of heterogeneity in past epidemiologic studies of the IGF axis and cancer...
  30. ncbi request reprint Diet and melanoma in a case-control study
    Amy E Millen
    Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 7344, USA
    Cancer Epidemiol Biomarkers Prev 13:1042-51. 2004
    ..Malignant melanoma has been one of the most rapidly increasing cancers within the United States with few modifiable risk factors. This study investigates risk related to dietary factors, which are potentially modifiable...
  31. ncbi request reprint A debriefing session with a nutritionist can improve dietary assessment using food diaries
    Marie M Cantwell
    National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
    J Nutr 136:440-5. 2006
    ..61 with a debriefing. Depending on the nutrients of interest, the inclusion of a debriefing can reduce the potential attenuation of RR in studies evaluating diet disease associations...
  32. doi request reprint Cord serum estrogens, androgens, insulin-like growth factor-I, and insulin-like growth factor binding protein-3 in Chinese and U.S. Caucasian neonates
    Rebecca Troisi
    Dartmouth Hitchcock Medical Center, Room 854, 7297 Rubin Building, One Medical Center Drive, Lebanon, NH 03756, USA
    Cancer Epidemiol Biomarkers Prev 17:224-31. 2008
    ..The meaning of the change in findings for estrogens after controlling for factors related to the pregnancy is unclear with regard to explaining international breast cancer differences...
  33. ncbi request reprint Exploring the underlying hormonal mechanisms of prenatal risk factors for breast cancer: a review and commentary
    Rebecca Troisi
    Room 854, Dartmouth Hitchcock Medical Center, 7297 Rubin Building, One Medical Center Drive, Lebanon, NH 03756, USA
    Cancer Epidemiol Biomarkers Prev 16:1700-12. 2007
    ..In addition, investigations should explore the possibility that in utero exposures may not act directly on the breast, but may alter other physiologic pathways such as hormone metabolism that have their effect on risk later in life...
  34. ncbi request reprint Relative validity of a food frequency questionnaire with a meat-cooking and heterocyclic amine module
    Marie Cantwell
    Nutrition Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, Maryland 20852, USA
    Cancer Epidemiol Biomarkers Prev 13:293-8. 2004
    ..In conclusion, although the FFQ and meat module underestimated absolute MeIQx and PhIP intake, its ability to rank individuals according to intake was acceptable...
  35. ncbi request reprint Formative research of a quick list for an automated self-administered 24-hour dietary recall
    Amy F Subar
    National Cancer Institute, Risk Factor Monitoring and Methods Branch, Bethesda, MD 20892 7344, USA
    J Am Diet Assoc 107:1002-7. 2007
    ..This pilot work illustrates the usefulness of formative cognitive and usability testing for questionnaire and software development...
  36. ncbi request reprint Insulin-like growth factors, insulin-like growth factor-binding proteins, and endometrial cancer in postmenopausal women: results from a U.S. case-control study
    James V Lacey
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Boulevard, MSC 7234, Rockville, MD 20852 7234, USA
    Cancer Epidemiol Biomarkers Prev 13:607-12. 2004
    ..To assess whether circulating insulin-like growth factor-1 (IGF-1), IGF-2, insulin-like growth factor-binding protein-1 (IGFBP-1), or IGFBP-3 were associated with endometrial cancer in postmenopausal women...
  37. ncbi request reprint Biomarkers of nutritional exposure and nutritional status: an overview
    Nancy Potischman
    Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD 20892 7344, USA
    J Nutr 133:873S-874S. 2003
  38. pmc Behavior and food consumption pattern of the population exposed in 1949-1962 to fallout from Semipalatinsk nuclear test site in Kazakhstan
    Vladimir Drozdovitch
    Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Boulevard, Bethesda, MD, 20892 7238, USA
    Radiat Environ Biophys 50:91-103. 2011
    ..The response data collected are useful for improving estimates of thyroid radiation dose estimates for the subjects of an ongoing epidemiological study...
  39. ncbi request reprint A comparison of two dietary instruments for evaluating the fat-breast cancer relationship
    Laurence S Freedman
    Gertner Institute for Epidemiology, Tel Hashomer, Israel
    Int J Epidemiol 35:1011-21. 2006
    ..We assessed this further using 4 day food records (FRs) and FFQs in a large sample...
  40. ncbi request reprint Carotenoid and tocopherol estimates from the NCI diet history questionnaire are valid compared with multiple recalls and serum biomarkers
    L Beth Dixon
    Department of Nutrition, Food Studies, and Public Health, New York University, New York City, NY, USA
    J Nutr 136:3054-61. 2006
    ....
  41. ncbi request reprint Abandon neither the food frequency questionnaire nor the dietary fat-breast cancer hypothesis
    Laurence S Freedman
    Cancer Epidemiol Biomarkers Prev 16:1321-2. 2007
  42. ncbi request reprint Risk of breast cancer classified by joint estrogen receptor and progesterone receptor status among women 20-44 years of age
    Julie A Britton
    Division of Environmental Health Science, Mount Sinai School of Medicine, New York, NY 10029, USA
    Am J Epidemiol 156:507-16. 2002
    ..These findings only modestly support the hypothesis that hormonally related risk factors have differing relations with ER+PR+ versus ER-PR- tumors among younger women...
  43. ncbi request reprint Serum levels of sex hormones and breast cancer risk in premenopausal women: a case-control study (USA)
    Susan R Sturgeon
    Department of Biostatistics and Epidemiology, University of Massachusetts, 715 North Pleasant Street, Arnold House 407, Amherst, MA 01003 9304, USA
    Cancer Causes Control 15:45-53. 2004
    ..Observed differences between cases and controls subjects in serum levels of DHEA and luteal phase progesterone should be investigated further in large prospective studies...
  44. pmc Poor iron status is more prevalent in Hispanic than in non-Hispanic white older adults in Massachusetts
    Erin L Seaverson
    Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
    J Nutr 137:414-20. 2007
    ..Cultural variation in dietary patterns may influence iron availability and body iron stores and contribute to an increased risk for iron deficiency anemia among some Hispanic older adults...
  45. ncbi request reprint Recall of physical activity in the distant past: the 32-year follow-up of the Prospective Population Study of Women in Göteborg, Sweden
    Lauren Lissner
    Institute of Community Medicine, Primary Health Care, Sahlgrenska Academy at Goteborg University, Goteborg, Sweden
    Am J Epidemiol 159:304-7. 2004
    ..Physical activity recall questionnaires for the distant past should be used with caution, particularly in older populations...
  46. pmc Methods of epidemiology: evaluating the fat-breast cancer hypothesis--comparing dietary instruments and other developments
    Laurence S Freedman
    Gertner Institute for Epidemiology, Sheba Medical Center, Tel Hashomer, Israel
    Cancer J 14:69-74. 2008
    ..The evidence is not yet conclusive, but additional follow-up in the randomized trial, as well as efforts to improve dietary assessment methodology for cohort studies, may be sufficient to provide a convincing answer...