Neutrophil to Lymphocyte Ratio in Oropharyngeal Squamous Cell Carcinoma : A Systematic Review and Meta-Analysis - Rodrigo, Juan Pablo (Centro de Investigación Biomédica en Red de Cáncer) ; Sánchez-Canteli, Mario (Universidad de Oviedo) ; Triantafyllou, Asterios (University of Liverpool) ; de Bree, Remco (University Medical Center Utrecht) ; Mäkitie, Antti A. (Helsinki University Hospital) ; Franchi, Alessandro (University of Pisa) ; Hellquist, Henrik (University of Algarve) ; Saba, Nabil F. (Emory University School of Medicine) ; Stenman, Göran (University of Gothenburg) ; Takes, Robert P. (Radboud University Medical Center) ; Valero Mayor, Cristina (Hospital de la Santa Creu i Sant Pau (Barcelona, Catalunya)) ; Zidar, Nina (Univerza V Ljubljani) ; Ferlito, Alfio (International Head and Neck Scientific Group (Itàlia)) ; Universitat Autònoma de Barcelona