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心肺复苏术(cardiopulmonary resuscitation)是指从可逆的危险因素中挽救濒死病人的一种方法。无预兆的室颤(VF)因其在老年人群中......
The mycobacteria are an inportant genus of Gram-positive,acid-fast,non-motile,aerobie,variably pigmented actinomycetes.T......