1. aDivision of Adolescent Medicine, University of Alabama at Birmingham, Children’s of Alabama, Birmingham, Alabama
2. bDivision of Adolescent and Young Adult Medicine, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
3. cDepartment of Pediatrics, University of Minnesota, Minneapolis, Minnesota
4. dDepartment of Family and Community Medicine, Hennepin Healthcare, Minneapolis, Minnesota