“Overall Survival and Role of Programmed Death Ligand 1 Expression in Patients With Metastatic Non-Small-Cell Lung Cancer and Immunotherapy: An Observational Study from Central Switzerland”. Swiss Medical Weekly 153, no. 1 (January 30, 2023): 40039. Accessed October 29, 2025. https://www.smw.ch/index.php/smw/article/view/3290.