Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, 28 Yonkeun-dong, Chongno-gu, Seoul 110-744, Korea
Dr. Seung-Yup Ku
Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, 28 Yonkeun-dong, Chongno-gu, Seoul 110-744, Korea