溴化异丙托品对哮喘和COPD的支气管扩张作用的肺功能观察
추화이병탁품대효천화COPD적지기관확장작용적폐공능관찰
Observations of Bronchodilatation in Lung Function by Ipratropium Bromide in Patients with Asthma and COPD
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