Endocrinology Division, Department of Internal Medicine, University Hospital "Dr. José E. González", Universidad Autonoma de Nuevo Leon, 64460, Monterrey, Mexico. Plataforma INVEST Medicina UANL-KER Unit Mayo Clinic (KER Unit México), Universidad Autonoma de Nuevo Leon, 64460, Monterrey, Mexico. Research Unit, University Hospital "Dr. José E. González", Universidad Autonoma de Nuevo Leon, 64460, Monterrey, Mexico. Knowledge and Evaluation Research Unit in Endocrinology, Mayo Clinic, Rochester, MN, 55905, USA. Mayo Medical Library, Mayo Clinic, Rochester, MN, USA. Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA. Endocrinology Division, Department of Internal Medicine, University Hospital "Dr. José E. González", Universidad Autonoma de Nuevo Leon, 64460, Monterrey, Mexico. rodriguezgutierrez.rene@mayo.edu. Plataforma INVEST Medicina UANL-KER Unit Mayo Clinic (KER Unit México), Universidad Autonoma de Nuevo Leon, 64460, Monterrey, Mexico. rodriguezgutierrez.rene@mayo.edu. Knowledge and Evaluation Research Unit in Endocrinology, Mayo Clinic, Rochester, MN, 55905, USA. rodriguezgutierrez.rene@mayo.edu. Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Medicine, Mayo Clinic, Rochester, MN, 55905, USA. rodriguezgutierrez.rene@mayo.edu.