1. Department of Obstetrics and Gynecology, Medical School of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
2. Faculty of Nursing; Universidad Andres Bello; Santiago de Chile Chile
3. Ultrasonography and Retraining Medical School of Ribeirao Preto (EURP); Ribeirao Preto Brazil
4. SEMEAR Fertilidade, Reproductive Medicine; Ribeirao Preto Brazil
5. Faculty of Nursing and Obstetrics; Universidad de los Andes, Chile; Santiago Chile