1. Incompetence of the sphincter of Oddi: an uncommon cause of pneumobilia: report of a case;Broadman;J Am Osteopath Assoc,1971
2. Significance of intra-abdominal extraluminal air detected by CT scan in blunt abdominal trauma;Hamilton;J Trauma,1995
3. Traumatic pneumoperitoneum. Implications of computed tomography diagnosis;Kane;Invest Radiol,1991
4. Pneumobilia after blunt trauma: a self-limited condition?;Barnes;J Trauma,2006
5. Traumatic pneumobilia: case report;Gering;J Trauma,2001