Involvement in treatment decision-making and self-reported efficacy among patients with advanced colorectal cancer: a nationwide multi-center cross-sectional study oleh Xiao-Fen Gu, Hui-Fang Xu, Yin Liu, Li Li, Yan-Qin Yu, Xi Zhang, Xiao-Hui Wang, Wen-Jun Wang, Ling-Bin Du, Shuang-Xia Duan, He-Lu Cao, Yu-Qian Zhao, Yun-Yong Liu, Juan-Xiu Huang, Ji Cao, Yan-Ping Fan, Chang-Yan Feng, Xue-Mei Lian, Jing-Chang Du, Remila Rezhake, Li Ma, You-Lin Qiao, You-Lin Qiao, You-Lin Qiao