Affiliation: | 1. Vanderbilt Epidemiology Center, , Nashville, TN, USA;2. Vanderbilt University, Institute of Medicine and Public Health, , Nashville, TN, USA;3. Vanderbilt University, Department of Obstetrics and Gynecology, , Nashville, TN, USA;4. Center for Human Genetics Research, Vanderbilt University, , Nashville, TN, USA |