1. Department of Genetics (D.R.S., B.A.D., W.A., K.G.E., R.S.S.), Philadelphia, Pennsylvania 19104
2. Division of Endocrinology, Metabolism, and Molecular Medicine (M.U., A.D.), Northwestern University Medical School, Chicago, Illinois 60611
3. Center for Research on Reproduction and Women’s Health, and Department of Obstetrics and Gynecology (J.F.S., J.R.W.), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104
4. Department of Obstetrics and Gynecology (R.S.L.), Pennsylvania State University, Hershey, Pennsylvania 17033