1. Department of Radiology, The Second Affiliated Hospital of The Third Military Medical University, Sha Pingba, Chongqing 400037, China
2. Department of Sleep and Psychology, Institute of Surgery Research, The Third Affiliated Hospital of The Third Military Medical University, Da Ping, Chongqing 400042, China
3. College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China