^○Michiru Yasui, Masaaki Ando, Tomonori Hada, Shiori Yanai, Kiyoshi Kanno, Mari Sawada, Shintaro Sakate, Yasunori Yoshino, Kyoko Shimada, Kei Kato, Yoshifumi Ochi, Satoki Semba, Mitsuru Toeda, Kouta Sakakibara, Toshifumi Kinjo (Kurashiki Medical Center, Japan)

^○Kyoko Shimada, Tomonori Hada, Michiru Yasui, Kei Kato, Yasunori Yoshino, Mari Sawada, Kiyoshi Kanno, Shintaro Sakate, Shiori Yanai, Masaaki Andou (Department of Obstetrics and Gynecology, Kurashiki Medical Center, Okayama, Japan)

^○Pranay Vinod Desai¹, Sanket V Pisat², Saroj Vinod Desai¹ (1.Department of Obstetrics and Gynecology, Nirmala Multispeciality Hospital, Mumbai, India, 2.Akanksha Maternity and Surgical Hospital, Mumbai, India)

^○Yu-Shan Lin¹, Chen-Ying Huang² (1.Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital Linkou, Taiwan, 2.Taiwan Association for Minimally Invasive Gynecology, Taiwan)

^○Shiori Yanai, Kunitoshi Kinjo, Kouta Sakakibara, Satoki Senba, Yoshihumi Ochi, Mitsuru Toeda, Kei Kato, Kyoko Shimada, Yasunori Yoshino, Michiru Yasui, Shintaro Sakate, Mari Sawada, Kiyoshi Kanno, Tomonori Hada, Masaaki Andou (Department of Gynecolocy, Kuarashiki Medical Center, Japan)

^○Kiyoshi Kanno, Kota Sakakibara, Mitsuru Toeda, Michiru Yasui, Kei Kato, Kyoko Shimada, Yasunori Yoshino, Mari Sawada, Shintaro Sakate, Tomonori Hada, Shiori Yanai, Masaaki Andou (Department of Obstetrics and Gynecology, Kurashiki Medical Center, Okayama, Japan)

^○Go Hirata, Satomi Arakawa, Yuka Tanoi, Shizuka Sakurai, Ami Yumoto, Ryoko Kajiyama, Misaki Toda, Rena Ishikawa, Yasuyo Maruyama, Tomoo Hirabuki (Odawara Municipal Hospital, Japan)

^○Patricia Ann Africa Factor, Regina Paz Airoso Tan-Espiritu (Department of Obstetrics and Gynecology, University of the Philippines-Philippine General Hospital, Philippines)