1 Nemours/A. I. duPont Hospital for Children, Wilmington, DE; Department of Obstetrics and Gynecology, Christiana Care Health System, 4755 Ogletown-Stanton Road, Suite 1905, Newark, DE 19718. Electronic address: [email protected].
2 Nemours/A. I. duPont Hospital for Children, Wilmington, DE; Division of Adolescent Medicine and Pediatric Gynecology, Departments of Pediatrics and Obstetrics and Gynecology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA.