1. Department of Acupuncture and Moxibustion, The First People's Hospital of Wenling, Wenling 317500, China
2. Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
3. Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
4. Gansu Provincial Hospital of TCM, Lanzhou 730050, China