title: The enigma of influenzal pneumonia.
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000547:Amantadine / Q000627:therapeutic use; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001424:Bacterial Infections / Q000209:etiology; D006801:Humans; D007252:Influenza Vaccines / Q000627:therapeutic use; D007251:Influenza, Human / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D010102:Oxygen Inhalation Therapy; D011014:Pneumonia / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D011024:Pneumonia, Viral / Q000209:etiology
chemical_list: D000305:Adrenal Cortex Hormones; D000900:Anti-Bacterial Agents; D007252:Influenza Vaccines; D000547:Amantadine