Gastrointestinal bleeding in acute respiratory failure.
D005750:Gastric Juice / Q000378:metabolism; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D012131:Respiratory Insufficiency / Q000150:complications*; D013270:Stomach / Q000382:microbiology; D013276:Stomach Ulcer / Q000209:etiology; D013312:Stress, Physiological / Q000150:complications