1. Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, MI, USA
2. Department of Nutrition, Nutrition Research Institute, University of North Carolina at Chapel Hill School of Public Health, Kannapolis, NC, USA
3. Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of Massachusetts Medical School, Baystate Medical Center, Springfield, MA, USA