References
- Crohn B B, Ginsburg L, Oppenheimer G D. Regional ileitis. A pathologic and clinical entity. JAMA 1932; 99: 1323–9
- Lockhard-Mummery H E, Morson B C. Crohn's disease (regional enteritis) of the large bowel and its distinction from ulcerative colitis. Gut 1960; 1: 87–105
- Myren J, Gjone E, Hertzberg J N, Rygvold O, Semb L S, Fretheim B. Epidemiology of ulcerative colitis and regional enterocolitis (Crohn's disease) in Norway. Scand J Gastroenterol 1971; 6: 511–4
- Skarstein A, Arnesjø B, Burhol P, Nordgärd K, Børkje B, Fluge G, et al. The incidence of ulcerative colitis and Crohn's disease in an urban population abstract. Scand J Gastroenterol 1982; 17(Suppl 78)349
- Kildeo S, Breckan R, Norgaard K, Burhol P G, Jorde R. The incidence of Crohn's disease in northern Norway from 1983 to 1986. Scand J Gastroenterol 1989; 24: 1265–70
- Haug K, Schrumpf E, Halvorsen J F, Fluge G, Hamre E, Hamre T. Epidemiology of Crohn's disease in western Norway. Scand J Gastroenterol 1989; 24: 1271–5
- Ekbom A, Helmick C, Zack M, Adami H O. The epidemiology of inflammatory bowel disease: a large, population-based study in Sweden. Gastroenterology 1991; 100: 350–8
- Nyhlin H, Danielsson Å. Incidence of Crohn's disease in a defined population in northern Sweden 1975–1981. Scand J Gastroenterol 1986; 21: 1185–92
- Lindberg E, Järnerot G. The incidence of Crohn's disease is not decreasing in Sweden. Scand J Gastroenterol 1991; 26: 495–500
- Munkholm P, Langholz E, Nielsen O H, Kreiner S, Binder V. Incidence and prevalence of Crohn's disease in the county of Copenhagen, 1962–1987—a six fold increase in incidence. Scand J Gastroenterol 1992; 27: 609–14
- Shivananda S, Pena A S, Nap M, Weerman I T, Mayberry J F, Ruitenberg E J, et al. Epidemiology of Crohn's disease in Regio Leiden, the Netherlands. Gastroenterology 1987; 93: 966–74
- Tragnone A, Hanau C, Bazzocchi G, Lanfranchi G A. Epidemiological characteristics of inflammatory bowel disease in Bologna, Italy—incidence and risk factors. Digestion 1993; 54: 183–8
- Rose J DR, Roberts C M, Williams G, Mayberry J F. Cardiff Crohn's disease jubilee: the incidence over 50 years. Gut 1988; 29: 346–51
- Fellows I W, Freeman J G, Holmes G KT. Crohn's disease in the city of Derby, 1951–85. Gut 1990; 31: 1262–5
- Lee F I, Costello F T. Crohn's disease in Blackpool—incidence and prevalence 1968–80. Gut 1985; 26: 274–8
- Pinchbeck B R, Kirdeikis B, Thomson A BR. Inflammatory bowel disease in Northern Alberta. An epidemiologic study. J Clin Gastroenterol 1988; 10: 505–15
- Hiatt R, Kaufman L. Epidemiology of inflammatory bowel disease in a defined northern California population. West J Med 1988; 149: 541–6
- Mayberry J F, Rhodes J. Epidemiological aspects of Crohn's disease: a review of the literature. Gut 1984; 25: 886–99
- Moum B, Vatn M, Ekbom A, Fausa O, Aadland E, Lygren I, et al. Incidence study of inflammatory bowel disease in southeastern Norway. Evaluation of methods after one year of registration. Digestion 1995; 56: 377–81
- Moum B, Vatn M H, Ekbom A, Aadland E, Fausa O, Lygren I, et al. Incidence of ulcerative colitis and indeterminate colitis in four counties of Southeastern Norway 1990–93. A prospective population-based study. Scand J Gastroenterol 1996; 31: 356–60
- Central Bureau of Statistics, Norway. Population statistics. The Bureau, Oslo 1992; I–II
- Rutgeerts P, Vantrappen G, Geboes K. Endoscopy in inflammatory bowel disease. Scand J Gastroenterol 1988; 24(Suppl 170)12–5
- Lind E, Fausa O, Elgjo K, Gjone E. Crohn's disease. Diagnostic procedure and problems. Scand J Gastroenterol 1985; 20: 660–4