1. Lewis Katz School of Medicine at Temple University Philadelphia Pennsylvania USA
2. Department of Otorhinolaryngology–Head and Neck Surgery University of Pennsylvania Philadelphia Pennsylvania USA
3. Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Endocrinology University of Pennsylvania Philadelphia Pennsylvania USA
5. Department of Pediatrics University of Texas Health Science Center at San Antonio San Antonio Texas USA
6. Leonard Davis Institute of Health Economics University of Pennsylvania Philadelphia Pennsylvania USA