| Helen L KwonAffiliation: Yale University Country: USA Childhood asthma and extreme values of body mass index: the Harlem Children's Zone Asthma InitiativeHelen L Kwon Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th Street, 7th Floor, New York, NY, 10032, USA J Urban Health 83:421-33. 2006 The epidemiology of asthma during pregnancy: prevalence, diagnosis, and symptomsHelen L Kwon Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, 7th Floor, New York, NY 10032, USA Immunol Allergy Clin North Am 26:29-62. 2006 Effect of fetal sex on airway lability in pregnant women with asthmaHelen L Kwon Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA Am J Epidemiol 163:217-21. 2006 Asthma prevalence among pregnant and childbearing-aged women in the United States: estimates from national health surveysHelen L Kwon From the Center for Perinatal, Pediatric, andn Environmental Epidemiology, Yale University School of Public Health, New Haven, CT 06520, USA Ann Epidemiol 13:317-24. 2003 Effect of pregnancy and stage of pregnancy on asthma severity: a systematic reviewHelen L Kwon Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut 06520-8034, USA Am J Obstet Gynecol 190:1201-10. 2004
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