authors Vaz Fragoso, Carlos A McAvay, Gail Van Ness, Peter H Casaburi, Richard Jensen, Robert L MacIntyre, Neil Thomas M. Gill, MD Yaggi, H Klar Concato, John
has subject area Aged Aged, 80 and over Airway Obstruction Diagnostic Errors Female Humans Male Middle Aged Models, Statistical Phenotype Pulmonary Disease, Chronic Obstructive Pulmonary Emphysema Quality of Life Spirometry