1 Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA.
2 Division of Endocrinology, Department of Medicine, University of Florida, Gainesville, FL, USA.
3 Knowledge and Evaluation Research Unit, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Medicine, Mayo Clinic, 200 1st Street SW, Rochester, MN, 55905, USA. montori.victor@mayo.edu.