Effectiveness of Second-Line Pembrolizumab Monotherapy for the Treatment of Nonsmall Cell Lung Cancer: A Retrospective-Single Institution Study of 52 Vietnamese Patients. - Tai Nguyen, Van; Kien Do, Hung; Van Le, Quang; Tu Do, Anh; Chu Nguyen, Van; Phuong Nguyen, Thi Bich; Hoa Nguyen, Thi Nhu (Clinical Medicine Insights: Oncology, 2025)