Hidayat, R., N. N. Soeroso, E. Syahruddin, D. Cahyadi, and Setiaputra. “Programmed Death Ligand 1 (PD-L1) Expression in Lung Adenocarcinoma Patients”. Respiratory Science, vol. 1, no. 3, June 2021, pp. 162-5, doi:10.36497/respirsci.v1i3.16.