title: Aspiration pneumonia. Magnitude and frequency of the problem.
mesh_terms: D000208:Acute Disease; D000488:Allied Health Personnel; D000768:Anesthesia, General / Q000009:adverse effects; D002908:Chronic Disease; D006801:Humans; D011015:Pneumonia, Aspiration / Q000209:etiology* / Q000401:mortality / Q000517:prevention & control; D011187:Posture; D014140:Tracheotomy / Q000009:adverse effects; D014187:Transportation of Patients; D014474:Unconsciousness; D014947:Wounds and Injuries / Q000150:complications