1. Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
2. Obstetrics and Gynecology Department, Dr. Arab Medical Center, Jeddah, Saudi Arabia
3. Obstetrics, Gynecology and Perinatology Department, Shupyk National Healthcare University of Ukraine, Kyiv, Ukraine
4. Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
5. Gynecology, Obstetrics and Urology, Higher School of Medicine of the National Polytechnic Institute, Mexico City, Mexico
6. Obstetrics and Gynecology Department, Shalini Hospital, Barkatpura, India
7. Department of Obstetrics and Gynecology, Services Institute of Medical Sciences, Lahore, Pakistan
8. Obstetrics and Gynaecology Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil