1. Department of Maternal Child, Postgraduate Program in Medical Sciences Fluminense Federal University Niterói Brazil
2. Department of Obstetrics and Gynaecology, Postgraduate Program in Perinatal Health, Faculty of Medicine Maternity School of Rio de Janeiro Federal University Rio de Janeiro Brazil
3. Hospital Moinhos de Vento Porto Alegre Brazil
4. Department of Obstetrics, Paulista School of Medicine São Paulo Federal University São Paulo Brazil
5. Department of Obstetrics and Gynecology Goiania Trophoblastic Disease Center (Clinics Hospital of Goias Federal University) Goiania Brazil
6. Division of Recife Trophoblastic Disease Center (Clinics Hospital of Pernambuco Federal University) Recife Brazil
7. Division of Caxias do Sul Trophoblastic Disease Center General Hospital of Caxias do Sul, School of Medicine, Center for Biological and Health Sciences, Caxias do Sul University Caxias do Sul Brazil
8. Department of Obstetrics and Gynecology University of Sao Paulo Medical School São Paulo Brazil
9. New England Trophoblastic Disease Center, Division of Gynecologic Oncology, Department of Obstetrics, Gynecology and Reproductive Biology Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard Medical School Boston MA USA
10. Postgraduate Program in Applied Health Sciences Vassouras University Rio de Janeiro Brazil