TY - Journal of International Oncology A1 - Li Peng, Zhang Shuang, Liu Huafeng, Ji Na, Hou Xiangkun, Xi Aohang, Zong Jianhai T1 - Research on positioning errors analysis of gamma knife pain-free face mask fractionated treatment for head tumors based on kV orthogonal image guidance Y1 - 2025-09-08 JF - Journal of International Oncology JO - Journal of International Oncology SP - 554 EP - 559 VL - 52 IS - 9 UR - https://gjzlx.sdfmu.edu.cn N1 - 10.3760/cma.j.cn371439-20250530-00094 ER -