Volume 20, Number 5—May 2014
Human Papillomavirus Prevalence in Oropharyngeal Cancer before Vaccine Introduction, United States
|Characteristic||% Case-patient samples not tested, n = 683||% Case-patient samples tested, n = 588|
|*Samples were provided from 7 US registries.|
1Members of HPV Typing of Cancers Workgroup who contributed to this study are listed at the end of this article.
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