Pneumoperitoneum following intermittent positive pressure breathing.
D000293:Adolescent; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing / Q000009:adverse effects*; D008297:Male; D011027:Pneumoperitoneum / Q000209:etiology*; D011175:Positive-Pressure Respiration / Q000009:adverse effects*