1. Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, China
2. Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
3. Zhejiang Laboratory, Research Center for Healthcare Data Science, Hangzhou, Zhejiang, China
4. Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, KS, USA
5. Department of Radiation Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
6. School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, Shaanxi, China