1. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
2. Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
3. Cancer Center of Sichuan Provincial People’s Hospital, Chengdu, China
4. Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, TX, USA
5. Department of Medical Imaging, Sun Yat-sen University Cancer Center, Guangzhou, China
6. Medical Physics Division in the Department of Radiation Oncology, Stanford University, Palo Alto, CA, USA