Comparison of efficacy and safety of PD-1 inhibitor monotherapy and combined with chemotherapy/targeted therapy in advanced malignant tumors
Hou Lina, Dina Suolitiken, Guo Zhi, Chen Xiao, Ren Hua
Journal of International Oncology . 2020, (4): 193 -198 .  DOI: 10.3760/cma.j.cn371439-20190731-00001