1. Children’s Hospital of Pittsburgh of UPMC, Department of Pediatrics, Division of Adolescent and Young Adult Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA;
2. University of Pittsburgh Student Health Service, Pittsburgh, Pennsylvania, USA;
3. Department of Pediatrics, Division of Child and Adolescent Health, Columbia University Medical Center, New York, New York, USA;
4. dDepartment of Population and Family Health, Mailman School of Public Health, Columbia University, New York, New York, USA