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Making the differential diagnosis between asthma and chronic obstructive pulmonary disease (COPD) based on the response to inhaled bronchodilators by means of spirometry is controversial. The objective of this study was to identify the most useful spirometric variables in order to distinguish between asthma and COPD.

Comparação da variação de resposta ao broncodilatador através da espirometria em portadores de asma ou doença pulmonar obstrutiva crônica