Proceedings: The role of viral infection in asthma and bronchitis.
D000328:Adult; D001249:Asthma / Q000150:complications*; D001991:Bronchitis / Q000150:complications*; D002648:Child; D006801:Humans; D012141:Respiratory Tract Infections / Q000150:complications*; D014777:Virus Diseases / Q000150:complications*