title: Hypoxia during invertography.
mesh_terms: D001006:Anus, Imperforate / Q000000981:diagnostic imaging*; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D007231:Infant, Newborn; D011187:Posture; D011446:Prospective Studies; D011859:Radiography; D013997:Time Factors