| Affiliation: | 1. Hong Kong, China;2. Memphis, TN USA;1. Department of Obstetrics and Gynecology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan;2. Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei Taiwan;1. Department of Obstetrics and Gynecology Western Reserve University Cleveland, Ohio, USA.;2. University Hospitals of Cleveland Cleveland, Ohio, USA.;1. Centro Rosarino de Estudios Perinatales Br. Orono 500 2000 Rosario, Argentina;1. Department of Obstetrics and GynecologyNorth Shore University Hospital 300 Community Dr. Manhasset, NY 10030 |
