1. Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
2. School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
3. Guang'an Traditional Chinese Medicine Hospital, Guang'an, China.
4. College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China.