title: Pembrolizumab: the value of PDL1 biomarker in head and neck cancer.
authors.affiliation: a U.O. Oncologia, ASL NA2 NORD , Department of Oncology , Frattamaggiore , Italy.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Addeo
authors.affiliation: b Department of Biochemistry, Biophysics and General Pathology , Second University of Naples , Naples , Italy.
authors.forename: Michele
authors.initials: M
authors.lastname: Caraglia
authors.affiliation: c Merck Sharp Dohme , Department of Oncology , Milan , Italy.
authors.forename: Giada
authors.initials: G
authors.lastname: Iuliano
keywords: Head and neck cancer; human papilloma virus; immunotherapy; pembrolizumab; programmed cell death (PD-1)