Affiliation: | 1. Department of Obstetrics, Fetal Neurology Unit, Federal University of S?o Paulo, S?o Paulo, Brazil;2. Department of Diagnostic Imaging, Magnetic Resonance Imaging Unit, Federal University of S?o Paulo, S?o Paulo, Brazil;3. Department of Gynecology and Obstetrics, Faculdade de Medic-ina de Ribeir?o Preto, Universidade de S?o Paulo, Ribeir?o Preto, Brazil;4. Escola de Ultra-sonografia e Reciclagem Médica de Ribeir?o Preto, Ribeir?o Preto, Brazil;5. Instituto Nacional de Ciência e Tecnologia de Horm?nios e Saúde da Mulher, Ribeir?o Preto, Brazil |