School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
School of Traditional Chinese Medicine Beijing University of Chinese Medicine Beijing 102488 China;
Mechanical ventilation; Ephedrine hydrochloride; Dexmedetomidine hydrochloride; Humoral regulation;