1. Postgraduation Program in Tocogynecology, Botucatu Medical School, São Paulo State University, Botucatu, SP, Brazil.
2. Botucatu Trophoblastic Disease Center, Botucatu Medical School Hospital, São Paulo State University, Botucatu, SP, Brazil.
3. Scientific Initiation Program by the São Paulo Research Foundation, Botucatu Medical School, São Paulo, SP, Brazil.
4. Rio de Janeiro Trophoblastic Disease Center, Maternity School of the Rio de Janeiro Federal University, Rio de Janeiro, RJ, Brazil.
5. Division of Gynaecologic Oncology, Department of Obstetrics, Gynaecology and Reproductive Biology, New England Trophoblastic Disease Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
6. Division of Gynaecologic Oncology, Department of Obstetrics and Gynaecology, Brigham and Women's Hospital, Boston, MA, USA.