Efficacy and safety of anlotinib plus camrelizumab in treating retroperitoneal soft tissue sarcomas: a single-center retrospective cohort study - Wu, Jianhui; Li, Chengpeng; Liu, Bonan; Liu, Qiao; Liu, Daoning; Wang, Zhen; Wang, Xiaopeng; Jia, Weiwei; Tian, Xiuyun; Hao, Chunyi (Annals of Translational Medicine, 2023)