1. School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China;
2. School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China;
3. Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China