1 University of the Philippines, Manila College of Medicine and the Philippine General Hospital, Manila, Philippines.
2 University of Ioannina, Thessaloniki, Greece.
3 Department of Obstetrics and Gynaecology, Centro de Educacion Medica e Investigaciones Clinicas, Buenos Aires, Argentina.
4 Medical faculty, University Ss Cyril and Methodius, R. Skopje, North Macedonia.
5 Cleveland Clinic Children's, Cleveland Clinic Lerner College of Medicine at Case, Cleveland, Ohio.
6 Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami Miller School of Medicine, Miami, Florida. Electronic address: [email protected].
7 Department of Obstetrics and Gynaecology, Cambridge University Hospitals, Cambridge, United Kingdom.
8 University of Melbourne Royal Women's Hospital, Royal Children's Hospital, Melbourne, Australia.