1. Obstetrics and Gynecology Department, Hospital General de Mexico, Mexico City 06720, Mexico
2. Immunogenomics and Metabolic Diseases, Instituto Nacional de Medicina Genomica, Mexico City 14610, Mexico
3. Clinical Research Branch, Instituto Nacional de Perinatologia, Mexico City 11000, Mexico
4. Centro de Investigacion en Ciencias de la Salud, Universidad Anahuac, Mexico City 52786, Mexico
5. American British Cowdray Medical Center IAP, Ob/Gyn Department, Mexico City 01120, Mexico
6. Faculty of Chemical-Biological Sciences, Universidad Autónoma de Guerrero, Chilpancingo 39030, Mexico