- Metabolomics in epidemiology: sources of variability in metabolite measurements and implicationsJoshua N Sampson
Corresponding Author Joshua N Sampson, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Blvd, Rockville, MD 20852
Cancer Epidemiol Biomarkers Prev 22:631-40. 2013..Here, the authors assess the variability of a large subset of metabolites and evaluate the implications for epidemiologic studies...
- A two-platform design for next generation genome-wide association studiesJoshua N Sampson
Biostatistics Branch, DCEG, National Cancer Institute, Rockville, Maryland 20852, USA
Genet Epidemiol 36:400-8. 2012..However, the loss of power due to imputation can be more substantial if the relative risks for rare variants are significantly larger than those previously observed for common variants...
- Selecting SNPs to identify ancestryJoshua N Sampson
National Cancer Institute, Bethesda, MD, USA
Ann Hum Genet 75:539-53. 2011..We demonstrate that selection procedures based on this estimate produce small sets of SNPs that can accurately predict ancestry. We also provide a list of the 100 optimal SNPs for identifying ancestry...