In group 1 (6 dogs ), after opening the chest,the left coronary artery was surrounded by a fitting flow prob of EBF and ploygraph system was connected with dogs.
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- 给药前各指标为对照值。 第1组6只,静注吗啡2mg·kg-1和纳络酮0.;1mg·kg-1加吗啡2mg·kg-1。