SUPREME-HN: a retrospective biomarker study assessing the prognostic value of PD-L1 expression in patients with recurrent and/or metastatic squamous cell carcinoma of the head and... oleh Sara I. Pai, Ezra E. W. Cohen, Derrick Lin, George Fountzilas, Edward S. Kim, Holger Mehlhorn, Neus Baste, Daniel Clayburgh, Loren Lipworth, Carlo Resteghini, Nawar Shara, Takashi Fujii, Jun Zhang, Michael Stokes, Huifen Wang, Philip Twumasi-Ankrah, Sophie Wildsmith, Asud Khaliq, Giovanni Melillo, Norah Shire