1. School of Acupuncture and Moxibustion, Shandong University of Traditional Chinese Medicine, Jinan, China.
2. School of Acupuncture and Moxibustion, Beijing University of Chinese Medicine, Beijing, China.
3. Shandong Institute of Medical Imaging, Jinan, China.
4. Beijing Hospital of Traditional Chinese Medicine affiliated to Capital Medical University, Beijing, China.