Immunohistochemical Scores for Programmed Death Ligand-1 (PD-L1) Expression and Prognostic in Patients with Gastric Cancer

Pereira, Marina A. MS; Fernando Kodama P Ramos, Marcus MD, PhD, FACS; Ribeiro e Ribeiro, Renan MD; Dias, Andre R. MD, PhD; Ribeiro, Ulysses Jr MD, PhD; Zilberstein, Bruno MD, PhD, FACS; Cecconello, Ivan MD, PhD; Sobroza Mello, Evandro MD, PhD; Castria, Tiago B. MD, PhD Author Information