Chronic obstructive pulmonary diseases in the elderly:  a paradigm of complexity.
Francesco
F
Blasi
Enrico E
EE
Guffanti
D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D005260:Female; D006295:Health Resources / Q000706:statistics & numerical data; D006801:Humans; D007249:Inflammation; D008297:Male; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology