Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HANSSON B. G.,Strong association between infection with human papillomavirus and oral and oropharyngeal squamous cell carcinoma : a population-based case-control study in southern Sweden,Acta Otolaryngol,,,2005,125,,1337-1344,https://cir.nii.ac.jp/crid/1570291225983954304,