Viral infection and exacerbations of chronic obstructive pulmonary disease.
Hogg
J C
JC
D006801:Humans; D008131:London / Q000453:epidemiology; D016133:Polymerase Chain Reaction; D029424:Pulmonary Disease, Chronic Obstructive / Q000821:virology*; D012141:Respiratory Tract Infections / Q000453:epidemiology* / Q000821:virology*; D014777:Virus Diseases / Q000175:diagnosis / Q000453:epidemiology*