1. Department of Gynecology and Obstetrics, Botucatu Medical School, Universidade Estadual Paulista “Júlio de Mesquita Filho,” Botucatu, SP, Brazil
2. Department of Obstetrics and Gynecology, Faculty of Medicine, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
3. Department of Gynecology and Obstetrics, Faculty of Medicine, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
4. Gynecology and Obstetrics Training Center, School of Medicine, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
5. Department of Tocoginecology, Centro Universitário Lusíada, Santos, SP, Brazil
6. Department of Obstetrics and Gynecology, Faculty of Medicine, Pontifícia Universidade Católica de São Paulo, Sorocaba, SP, Brazil
7. Department of Gynecology and Obstetrics, Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
8. Department of Gynecology and Obstetrics, Faculty of Medical Sciences, Universidade Estadual de Campinas, Campinas, SP, Brazil
9. Department of Gynecology and Obstetrics, Faculty of Medicine, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
10. Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil