1. Division of Adolescent Medicine, Department of Pediatrics, University of Michigan
2. Departments of Family Medicine and Pediatrics, Uniformed Services University, Bethesda, Maryland
3. Department of Family Medicine, David Grant Medical Center, Travis Air Force Base, California
4. Division of Developmental-Behavioral Pediatrics, Department of Pediatrics, University of Texas Southwestern Medical Center, Children's Medical Center Dallas
5. The Potocsnak Family Division of Adolescent and Young Adult Medicine, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago
6. Department of Pediatrics, Division of Adolescent & Young Adult Medicine, University of California, Los Angeles, California, USA