1. : Lucencies in the gallbladder and bile ducts, in (ed): The Abdominal Plain Film. Norwalk, CT, Appleton and Lange, 1990, p. 273.
2. : Complications of peptic ulcer disease and indications for surgery, in (eds): Gastrointestinal Disease: Pathophysiology, Diagnosis, Management (vol 1, ed 3). Philadelphia, Saunders, 1978, p. 725.
3. Sonographic findings in complicated peptic ulcer.