1. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland
2. Division of Biostatics and Bioinformatics, Johns Hopkins School of Medicine, Baltimore, Maryland
3. Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland
4. Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland4Milton J. Dance Head and Neck Center, Greater Baltimore Medical Center, Baltimore, Maryland