1. Departments of Obstetrics and Gynecology (S.-U.C., R.-J.C., C.-H.C., Y.-S.Y.), Taipei 100, Taiwan
2. Physical Medicine and Rehabilitation (J.-Y.S.), Taipei 100, Taiwan
3. Pathology (C.-W.L.), National Taiwan University Hospital, Taipei 100, Taiwan
4. Far Eastern Memorial Hospital (H.-F.L.), Taipei 100, Taiwan