1. Crohn, B. B. Acute regional ileitis. Clinical aspects and follow-up studies.New York J Med 65:641, 1965.
2. Crohn, B. B. Indication for surgical intervention in regional ileitis.Arch Surg 74:305, 1957.
3. Arnheim, H. L., andLee, W. E. Regional ileitis with perforation, abscess and peritonitis.J Mount Sinai Hosp NY 2:61, 1935.
4. Cumming, R. P. Acute perforation in regional ileitis.J Roy Coll Surg Edinb 7:147, 1962.
5. Fischmann, M. Crohn's ileocolitis with free perforation.Prensa Med Argent 52:2116, 1965.