Nomogram based on CT imaging and clinical data to predict the efficacy of PD-1 inhibitors combined with chemotherapy in advanced gastric cancer - Ma, Yinchao; Wang, Zhipeng; Qiu, Chenyang; Xiao, Mengjun; Wu, Shuzhen; Han, Kun; Xu, Hui; Wang, Haiyan (Frontiers in Immunology, 2025)