1. General Pediatrics and Adolescent Medicine Division, Department of Pediatrics, and Sports Medicine Section, Department of Orthopedics, Medical College of Georgia, Augusta, Georgia
2. Adolescent and Sports Medicine Section, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
3. Academic General Pediatrics Section, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
4. University of Texas Health Science Center at Houston School of Public Health, Houston, Texas