1. Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
2. Department of Otorhinolaryngology: Head and Neck Surgery University of Pennsylvania, Perelman School of Medicine Philadelphia Pennsylvania USA
3. Department of Otolaryngology: Head and Neck Surgery University of Kansas Kansas City Kansas USA
4. Leonard Davis Institute of Health Economics University of Pennsylvania Philadelphia Pennsylvania USA
5. Department of Hematology, Medical Oncology University of Pennsylvania Philadelphia Pennsylvania USA
6. Department of Healthcare Policy & Research Weill Cornell Medicine New York New York USA