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Overall and site specific HPV DNA and RNA prevalence among all head and neck tumors and stratified by anatomical site. Overall, 247 tumors were analyzed for HPV DNA, 63 from the oropharynx, 63 from the oral cavity, 96 from the larynx, and 25 from the hypopharynx. Of the 21 HPVDNA positive tumors, 18 were analyzed for HPV RNA, while 3 (2 from oropharynx and 1 from larynx) could not be analyzed.
