1 Pediatric and Adolescent Gynecology, Kosair Children's Hospital, Louisville, Kentucky.
2 Pediatric and Adolescent Gynecology, Seattle Children's Hospital, Department of Obstetrics and Gynecology, University of Washington School of Medicine, Seattle, Washington.
3 Division of Adolescent Medicine, Children's Hospital at Memorial University Medical Center, Mercer School of Medicine, Savanah, Georgia.
4 Division of Adolescent Medicine, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington.
5 Pediatric and Adolescent Gynecology, Children's Hospital Colorado, Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado.
6 Department of Obstetrics and Gynecology, Virginia Commonwealth University School of Medicine, Richmond, Virginia.
7 Section of Adolescent Medicine, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado.
8 Division of Adolescent Medicine, Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York.
9 Department of Obstetrics and Gynecology, Alpert Medical School of Brown University, Providence, Rhode Island.
10 Pediatric and Adolescent Gynecology, Children's Hospital of Eastern Ontario, Department of Obstetrics and Gynecology, University of Ottawa, Canada. Electronic address: [email protected].