REFERENCES
- Desmet VJ, Gebos K. Liver lesions in inflammatory bowel disorders. J Pathol 1987;151:247–253.
- Rankin GB. Extraintestinal and systemic manifestations of inflammatory bowel disease. Med Clin North Am 1990;74:39–50.
- Wewer V, Gluud C, Schlichting P, Burcharth F. Prevalence of hepatobiliary dysfunction in a regional group of patients with chronic inflammatory bowel disease. Scand J Gastroenterol 1991;26:97–102.
- Broomè U, Glaumann H, Hellers G, Nilsson B, Sorstad J, Hultcrantz R. Liver disease in ulcerative colitis: an epidemiological and follow up study in the county of Stockholm. Gut 1994;35:84–9.
- Olsson R, Danielsson A, Jarnerot G, Lindstrom E, Loof L, Rolny P, et al. Prevalence of primary sclerosing cholangitis in patients with ulcerative colitis. Gastroenterology 1991;100:1319–23.
- Rasmussen HH, Fallingborg J, Mortensen PB, Freund L, Tage-Jensen U, Kruse V, et al. Primary sclerosing cholangitis in patients with ulcerative colitis. Scand J Gastroenterol 1992;27:732–6.
- Mir-Madjlessi SH, Farmer RG, Sivak MV Jr. Bile duct carcinoma in patients with ulcerative colitis. Relationship to sclerosis cholangitis: report of six cases and review of the literature. Dig Dis Sci 1987;32:145–54.
- Choi PM, Nugent FW, Zelig MP, Munson JL, Schoetz DJ Jr. Cholangiocarcinoma and Crohn’s disease. Dig Dis Sci 1994; 39:667–70.
- Bush A, Mitchison H, Walt R, Baron JH, Boylston AW, Summerfield JA, et al. Primary biliary cirrhosis and ulcerative colitis. Gastroenterology 1987;92:2009–2013.
- Hashimoto E, Ideta M, Taniai M, Watanabe U, Okuda H, Nagasako K, et al. Prevalence of primary sclerosing cholangitis and other liver diseases in Japanese patients with chronic ulcerative colitis. J Gastroenterol Hepatol 1993;8:146–9.
- Nemeth A, Ejderhamn J, Glaumann H, Strandvik B. Liver damage in juvenile inflammatory bowel disease. Liver 1990;10:239–48.
- Lorusso D, Leo S, Mossa A, Misciagna G, Guerra V. Cholelithiasis in inflammatory bowel disease. A case-control study. Dis Colon Rectum 1990;33:791–4.
- Kangas E, Lehmusto P, Matikainen M. Gallstones in Crohn’s disease. Hepatogastroenterol 1990;37:83–4.
- Hutchinson R, Tyrrell PNM, Kumar D, Dunn JA, Li JKW, Allan RN. Pathogenesis of gall stones in Crohn’s disease: an alternative explanation. Gut 1994;35:94–7.
- Siegel S. Non parametric statistics for the behavorial sciences. New York: McGraw-Hill Book Co.; 1956.
- Breslow NE, Day NE. Statistical methods in cancer research. Vol I. The analysis of case-control studies. Lyon: International Agency for Research on Cancer; 1980. IARC Scientific Publications No. 32.
- Bouhnik Y, Benamouzig R, Rybojad M, Matuchansky C, Rambaud JC. Extra-intestinal manifestations of inflammatory bowel disease. Gastroenterol Clin Biol 1993;17:121–9.
- Schrumpf E, Fausa O, Elgjo K, Kolmannskog F. Hepatobiliary complications of inflammatory bowel disease. Semin Liver Dis 1988;8:201–9.
- De Fazio C, Torgano G, De Franchis R, Meucci G, Arrigoni M, Vecchi M. Detection of liver involvment in inflammatory bowel disease by abdominal ultrasound scan. Int J Clin Lab Res 1992;21:314–7.
- Whorwell PJ, Hawkins R, Dewbury K, Wright R. Ultrasound survey of gallstones and other hepatobiliary disorders in patients with Crohn’s disease. Dig Dis Sci 1984;29:930–3.
- Heaton KW, Braddon FEM, Mountford RA, Hughes AO, Emmett PM. Symptomatic and silent gall stones in the community. Gut 1991;32:316–20.
- The Rome Group for Epidemiology and Prevention of Cholelithiasis (GREPCO). The epidemiology of gallstone disease in Rome, Italy. I. Prevalence data in men. Hepatology 1988;8:904–6.
- Barbara L, Sama C, Morselli Labate AM, Taroni F, Rusticali AG, Festi D, et al. A population study on the prevalence of gallstone disease: the Sirmione Study. Hepatology 1987;7:913–7.