1 Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730; Department of Radiology, Beijing Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China.
2 Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
3 Department of Radiology, The PLA Rocket Force General Hospital, Beijing 100088, China.
4 Department of Radiology, Beijing Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China.
5 Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.