Applying mixed-integer linear programming to the non-coplanar beam angle optimization of intensity-modulated radiotherapy for liver cancer - Huang, Peng; Shang, Jiawen; Xie, Xin; Hu, Zhihui; Liu, Zhiqiang; Yan, Hui (Quantitative Imaging in Medicine and Surgery; Vol 14, No 8 (August 01, 2024): Quantitative Imaging in Medicine and Surgery, 2024)