Institution: | (1) Department of Gynecology and Obstetrics, Federal University of Minas Gerais, School of Medicine, Avenida Professor Alfredo Balena 190, Santa Efig?nia, Belo Horizonte, Minas Gerais, 30130100, Brazil;(2) Department of Gynecology and Obstetrics, MaterDei Hospital, Belo Horizonte, Minas Gerais, Brazil |