1. Department of Otolaryngology–Head and Neck Surgery, University of Kentucky , Lexington, KY, USA
2. Epidemiology, Johns Hopkins Bloomberg School of Public Health , Baltimore, MD, USA
3. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine , Baltimore, MD, USA
4. Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University , Baltimore, MD, USA