1. Department of Obstetrics, Paulista School of Medicine, Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil;
2. Mario Palmério University Hospital, University of Uberaba (UNIUBE), Uberaba, Brazil;
3. Department of Obstetrics and Gynecology, Federal University of Triângulo Mineiro (UFTM), Uberaba, Brazil;
4. Department of Reproductive Medicine, SEMEAR fertilidade, Ribeirão Preto, Brazil