1. Department of Gynaecology and Obstetrics, Jundiaí School of Medicine, Jundiaí, Brazil;
2. Department of Gynaecology and Obstetrics, ABC School of Medicine, Santo André, Brazil;
3. Department of Gynaecology and Obstetrics, PUC-RS, Porto Alegre, Brazil;
4. Department of Gynaecology and Obstetrics, University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil;
5. Department of Clinical Research, Libbs Farmacêutica Ltda, São Paulo, Brazil;
6. Department of Gynaecology and Obstetrics, Botucatu School of Medicine (FMB-UNESP), UNESP – Sao Paulo State University, Botucatu, Brazil;
7. Centre for Research and Assistance in Human Reproduction, Federal University of Bahia, Salvador, Brazil