1. Department of Medicine, School of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru
2. Division of Endocrinology, Hospital Nacional Edgardo Rebagliati Martins, Lima, Perú
3. Carrera de Medicina Humana, Universidad Científica del Sur, Lima, Perú
4. Division of Non-communicable diseases, Endocrinology research line, Hospital de Apoyo Chepén, Chepén, Perú