[1] Tottori Univ, Fac Med, Yonago, Japan
[2] Fudan Univ, OB GYN Hosp, Shanghai, Peoples R China
[3] Seoul Natl Univ, Coll Med, Seoul, South Korea
[4] Gazi Univ, Med Sch, Ankara, Turkiye
[5] Natl Cheng Kung Univ, Coll Med, Tainan, Taiwan
[6] Shiraz Univ Med Sci, Shiraz, Iran
[7] United Arab Emirates Univ, Coll Med & Hlth Sci, Abu Dhabi, U Arab Emirates
[8] Mahidol Univ, Siriraj Hosp, Bangkok, Thailand
[9] Univ Philippines, Coll Med, Manila, Philippines
[10] Natl Univ Singapore, Singapore City, Singapore
[11] Univ Colombo, Colombo, Sri Lanka
[12] Moscow Reg Sci Res Inst Obstet & Gynecol, Moscow, Russia
[13] Univ Indonesia, Jakarta, Indonesia
[14] Carmel Hosp, Haifa, Israel
[15] Tottori Univ, Fac Med, Dept Obstet & Gynecol, 36-1 Nishicho, Yonago, Tottori 6838504, Japan