RESPIRATORY SYNCYTIAL VIRUS IN ACUTE EXACERBATIONS OF CHRONIC BRONCHITIS.
D000818:Animals; D001991:Bronchitis; D029481:Bronchitis, Chronic; D003168:Complement Fixation Tests; D012136:Respiratory Syncytial Viruses; D012141:Respiratory Tract Infections; D046509:Tissue Culture Techniques; D014714:Vertebrates; D014777:Virus Diseases; D014780:Viruses
BRONCHITIS; COMPLEMENT FIXATION TESTS; RESPIRATORY TRACT INFECTIONS; TISSUE CULTURE; VERTEBRATE VIRUSES; VIRUS DISEASES