Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Oregon Health and Science University, 3303 SW Bond Ave, Mail Code CH8N, Portland, OR, 97239, USA. Endocrinology Division, Department of Medicine, Hospital Universitario, Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico. Neuroendocrinology Clinic, Department of Endocrinology and Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico. Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Oregon Health and Science University, 3303 SW Bond Ave, Mail Code CH8N, Portland, OR, 97239, USA. fleseriu@ohsu.edu.