1. Department of Pediatrics, Hospital Maternidad Sardá, Universidad de Buenos Aires, Buenos Aires, Argentina
2. Department of Obstetrics, Hospital Maternidad Sardá, Universidad de Buenos Aires, Buenos Aires, Argentina
3. Department of Pathology, Hospital Maternidad Sardá, Universidad de Buenos Aires, Buenos Aires, Argentina
4. Department of Ginecology & Obsterics, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
5. Department of Pediatrics, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil