[On the contribution of retropneumoperitoneum to the radiological study of the hypochondriac organs].
D000005:Abdomen / Q000000981:diagnostic imaging*; D006801:Humans; D007327:Insufflation; D011027:Pneumoperitoneum; D011028:Pneumoperitoneum, Artificial; D011860:Radiography, Abdominal; D012188:Retropneumoperitoneum
ABDOMEN/radiography; PNEUMOPERITONEUM, ARTIFICIAL