Institution: | a Department of Obstetrics and Gynecology, Akita University School of Medicine, Akita 010-8543, Japan b Department of Dermatology and Plastic Surgery, Akita University School of Medicine, Akita 010-8543, Japan c Division of Reproductive Biology, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA 94305-5317, USA d Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Zhejiang 310-006, China e Organon, Oss 5340, The Netherlands |