title: A study of the etiology of pneumonias in Egypt.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010406:Penicillins / Q000627:therapeutic use; D011014:Pneumonia / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis; D011024:Pneumonia, Viral / Q000175:diagnosis; D013411:Sulfadiazine / Q000627:therapeutic use
chemical_list: D010406:Penicillins; D013411:Sulfadiazine