The threat of aspiration pneumonia in the aged.
D000368:Aged; D001424:Bacterial Infections / Q000209:etiology; D001784:Blood Gas Analysis; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D011015:Pneumonia, Aspiration / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D011859:Radiography; D012129:Respiratory Function Tests