1. Foreign body perforation of the intestinal tract;McPherson;Am J Surg,1957
2. Foreign body perforation of the intestinal tract;Maleki;Arch Surg,1970
3. Foreign body perforation of the gut;Ashby;Br J Surg,1967
4. Intestinal perforation in an adult;Ani;J Roy Coll Surg Edin,1982