RT Journal Article SR Electronic T1 Prognostic impact of p16 and PD-L1 expression in patients with oropharyngeal squamous cell carcinoma receiving a definitive treatment JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 542 OP 549 DO 10.1136/jclinpath-2019-205818 VO 72 IS 8 A1 Fumihiko Sato A1 Takeharu Ono A1 Akihiko Kawahara A1 Toshihiko Kawaguchi A1 Hisaichiro Tanaka A1 Kazuhide Shimamatsu A1 Tatsuyuki Kakuma A1 Jun Akiba A1 Hirohito Umeno A1 Hirohisa Yano YR 2019 UL http://jcp.bmj.com/content/72/8/542.abstract AB Markup server — Error Error There was a problem handling your request. Please try again in a few minutes, or contact us if you continue to experience this problem.