Analysis of PD-1/PD-L1 variations in lung cancer and association with immunotherapeutic efficacy and prognosis: A nonrandomized controlled trial Jun Ma; JianRui Song; LiNa Han; Wen Zhou; LiFeng Meng; JianHui Li; XiaoMing Bai;

Comprehensive exploration of immune checkpoint-related genes in the prognosis and tumor immune microenvironment of pancreatic adenocarcinoma Xiao Chen; Herui Zhang;

Bibliographic research with large language model ChatGPT-4: instability, hallucinations and sometimes alerts Konradin Metze; Rosana Celestina Morandin-Reis; Irene Lorand-Metze; João Batista Florindo;