Institution: | 1. Department of Anesthesia, Tianjin Medical University General Hospital, Tianjin, China;2. Tianjin Institute of Anesthesiology, Tianjin, China;1. Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, PR China;2. Scientific Research Center, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, PR China |