1. Department of Physiology (S.-J.T., H.-M.C., P.-C.C., L.-Y.W.), National Cheng Kung University Medical College, Tainan 70101, Taiwan, Republic of China
2. Department of Obstetrics & Gynecology (M.-H.W.), National Cheng Kung University Medical College, Tainan 70101, Taiwan, Republic of China