Studies of acute respiratory illnesses caused by respiratory syncytial virus. 2. Epidemiology and assessment of importance.
D002648:Child; D006801:Humans; D007223:Infant; D012136:Respiratory Syncytial Viruses; D012141:Respiratory Tract Infections; D014777:Virus Diseases
RESPIRATORY TRACT INFECTIONS/in infancy and childhood; VIRUS DISEASES/in infancy and childhood