1 From the Baylor College of Medicine/Texas Children's Hospital, Houston, Texas USA (W.L.); Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Mt Scopus, Jerusalem, Israel (S.Y., S.M.C.); Departments of Radiology and Obstetrics and Gynecology, Brigham and Women's Hospital, and Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts USA (B.R.B.); Department of Reproductive Epidemiology, University of Leeds, Leeds, England (H.C.); Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany (K.O.K.); Departments of Obstetrics and Gynecology and Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas USA (I.V.d.V.); and Department of Obstetrics and Gynecology, Columbia University College of Physicians and Surgeons, New York, New York USA (R.W.). simcha.yagel@gmail.com.
2 From the Baylor College of Medicine/Texas Children's Hospital, Houston, Texas USA (W.L.); Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Mt Scopus, Jerusalem, Israel (S.Y., S.M.C.); Departments of Radiology and Obstetrics and Gynecology, Brigham and Women's Hospital, and Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts USA (B.R.B.); Department of Reproductive Epidemiology, University of Leeds, Leeds, England (H.C.); Department of Obstetrics and Gynecology, University of Tübingen, Tübingen, Germany (K.O.K.); Departments of Obstetrics and Gynecology and Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas USA (I.V.d.V.); and Department of Obstetrics and Gynecology, Columbia University College of Physicians and Surgeons, New York, New York USA (R.W.).