1. Center for Pediatric Research in Obesity and Metabolism, Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
2. Department of Medicine, Division of Endocrinology and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
3. Department of Pediatrics and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon
4. Human Performance and Exercise Science, Youngstown State University, Youngstown, Ohio
5. Division of Pediatric Endocrinology, Metabolism and Diabetes Mellitus, Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania