Chandarana SP, Lee JS, Chanowski EJ, Sacco AG, Bradford CR, Wolf GT, Prince ME, Moyer JS, Eisbruch A, Worden FP, Giordano TJ, Kumar B, Cordell KG, Carey TE, Chepeha DB. Prevalence and predictive role of p16 and epidermal growth factor receptor in surgically treated oropharyngeal and oral cavity cancer. Head Neck. 2013 Aug; 35(8):1083-90.