title: The etiology of lobar pneumonia and empyema thoracis in children.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004653:Empyema / Q000382:microbiology*; D006192:Haemophilus Infections / Q000382:microbiology; D006193:Haemophilus influenzae / Q000302:isolation & purification; D006801:Humans; D007223:Infant; D011018:Pneumonia, Pneumococcal / Q000382:microbiology*; D013203:Staphylococcal Infections / Q000382:microbiology; D013290:Streptococcal Infections / Q000382:microbiology; D013296:Streptococcus pneumoniae / Q000302:isolation & purification