1. Eisenstadt HB: Regional ileitis, a review. Am J Gastroenteral 43:560, 1965
2. Dyer NH, Dawson AM: Crohn's disease. A continuing source of error. Br Med J 1:735, 1970
3. Thayer WR, Jr: Crohn's disease (regional enteritis). A look at the last four years. Scand J Gastroenterol 5: Suppl 6:165, 1970
4. Bennard-Jones JE, Morson BC: Changing concepts in Crohn's disease. DM August 1–37, 1969
5. Williams WJ: Histology of Crohn's syndrome. Gut 5:510, 1964