autores Antonio Jaime Botelho Correia de Sousa António Manuel Silva Duarte de Araújo Gomes, Pedro T. Hespanhol, Venceslau Correia de Sousa, J.
palavras-chave Aged Cross-Sectional Studies Female Forced Expiratory Volume Humans Male Middle Aged Practice Guidelines as Topic Pulmonary Disease, Chronic Obstructive Reference Standards Severity of Illness Index Surveys and Questionnaires