1. Southern Medical University, Guangzhou, Guangdong, China
2. Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
3. First Affiliated Hospital of Guangzhou University of TCM, Guangdong, China
4. Acupuncture and Moxibustion College of Guangzhou University of TCM, Guangdong, China
5. First Affiliated Hospital of Jinan University, Guangdong, China