title: Pneumoperitoneum in the newborn.
mesh_terms: D006801:Humans; D007082:Ileum; D007231:Infant, Newborn; D007416:Intestinal Perforation / Q000150:complications; D008297:Male; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography