RT Journal Article SR Electronic T1 Apatinib plus camrelizumab (anti-PD1 therapy, SHR-1210) for advanced osteosarcoma (APFAO) progressing after chemotherapy: a single-arm, open-label, phase 2 trial JF Journal for ImmunoTherapy of Cancer JO J Immunother Cancer FD BMJ Publishing Group Ltd SP e000798 DO 10.1136/jitc-2020-000798 VO 8 IS 1 A1 Xie, Lu A1 Xu, Jie A1 Sun, Xin A1 Guo, Wei A1 Gu, Jin A1 Liu, Kuisheng A1 Zheng, Bingxin A1 Ren, Tingting A1 Huang, Yi A1 Tang, Xiaodong A1 Yan, Taiqiang A1 Yang, Rongli A1 Sun, Kunkun A1 Shen, Danhua A1 Li, Yuan YR 2020 UL http://jitc.bmj.com/content/8/1/e000798.abstract AB Markup server — Error Not Found The page you were trying to reach could not be found. Please check the address for the page you were trying to reach. If you believe you have reached this page in error, you may contact us with any questions.