title: The bacterial flora of the upper respiratory tract in children in severe asthma.
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000382:microbiology*; D001419:Bacteria / Q000302:isolation & purification*; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D012137:Respiratory System / Q000382:microbiology*