1. Medical Causes of Acute Abdomin
2. Medical conditions simulating the acute abdomen;Smithells;Ann R Coll Surg Engl,1971
3. Non-surgical acute abdomen;Walker;J Abdom Surg,1964
4. Medical abdominal crises;Ward;J Ky Med Assoc,1961
5. The fate of the negative appendix;Chang;Am J Surg,1973