authors Vaz Fragoso, Carlos A Concato, John McAvay, Gail Van Ness, Peter H Rochester, Carolyn L Yaggi, H Klar Thomas M. Gill, MD
has subject area Age Factors Aged Aged, 80 and over Female Forced Expiratory Volume Humans Male Practice Guidelines as Topic Prognosis Pulmonary Disease, Chronic Obstructive Sex Factors Spirometry