Virus infections in chronic bronchitis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000235:genetics / Q000382:microbiology*; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D014777:Virus Diseases