Objective: to evaluate the efficacy of low tidal volume one-lung ventilation plus positive end-expiratory pressure.
目的：观察低潮气量单肺通气复合呼气末正压对于开胸术患者的效果。
METHODS:551 categories of medicinal materials and cut crude drugs in Edition 2005 of China Pharmacopeia(Volume One) was classified on the basis of descriptions of their toxin and precautions.
方法：将2005年版《中国药典》（一部）中551种药材及饮片，根据其毒性和注意项进行分类整理。
METHODS:551 categories of medicinal materials and cut crude drugs in Edition 2005 of China Pharmacopeia(Volume One) was classified on the basis of descriptions of their toxin and precautions.
方法：将2005年版《中国药典》（一部）中551种药材及饮片，根据其毒性和注意项进行分类整理。
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