1. Discipline of Obstetrics, Department of Obstetrics and Gynecology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
2. Division of Obstetric Clinic, Hospital das Clínicas HCFMUSP, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
3. Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
4. Division of Pathology, Hospital das Clínicas HCFMUSP, School of Medicine, University of São Paulo, São Paulo, SP, Brazil