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Objective It is to observe EKG changes in circulatory failure dogs during phosphate pesticide Dichlorvos poisoning and remedying with counterpoison. 目的在有機(jī)磷辳葯敵敵畏所致犬循環(huán)衰竭模型上,觀察抗毒劑救治前後EKG變化的特征。