Affiliation: | 1. Division of Pediatric and Adolescent Gynecology, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas;2. Division of Pediatric and Adolescent Gynecology, Department of Obstetrics and Gynecology, Ohio State University, Columbus, Ohio;3. Division of General Gynaecology and Obstetrics, University of British Columbia, Vancouver, British Columbia, Canada |