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Validation of the Airways questionnaire 20 - AQ20 in patients with chronic obstructive pulmonary disease (COPD) in Brazil

Validação do questionário de vias aéreas 20 ("Airways questionnaire 20" - AQ20) em pacientes portadores de doença pulmonar obstrutiva crônica (DPOC) no Brasil

Aquiles Camelier, Fernanda Rosa, Paul Jones, José Roberto Jardim

How to cite this article

Camelier A, Rosa F, Jones P, Jardim JR. Validation of the Airways questionnaire 20 - AQ20 in patients with chronic obstructive pulmonary disease (COPD) in Brazil . J Bras Pneumol. 2003;29(1):28-35

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