1. Department of Obstetrics and Gynecology Hospital Central "Dr. Ignacio Morones Prieto" San Luis Potosi Mexico
2. Department of Maternal‐fetal Medicine GOfem. Super‐specialized Obstetrics and Gynecology Clinic San Luis Potosi Mexico
3. Faculty of Nursing and Nutrition Universidad Autonoma de San Luis Potosi San Luis Potosi Mexico
4. Department of Obstetrics and Gynecology Women and Children's Hospital San Luis Potosi Mexico