1. Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee, United States
2. Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
3. Division of Quantitative Sciences, Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
4. Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
5. Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, Tennessee, United States
6. Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, United States