1. Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
2. National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300380, China
3. Library of Tianjin University of Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China