He added that there is some evidence that oral HPV infection is also a risk factor for a type of cancer of the esophagus.
有一些证据表明口腔部位HPV的感染对食管肿瘤也是一个致病因素。
He added that there is some evidence that oral HPV infection is also a risk factor for a type of cancer of the esophagus.
有一些证据表明口腔部位HPV的感染对食管肿瘤也是一个致病因素。
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