1. Desmet VJ, Geboes K: Liver lesions in inflammatory bowel disorders. J Pathol 151:247–255, 1987
2. Williams SM, Harned RK: Hepatobiliary complications of inflammatory bowel disease. Radiol Clin North Am 25:175–188, 1987
3. Ludwig J, LaRusso NF, Wiesner RH: The syndrome of primary sclerosing cholangitis.In Progress in Liver Diseases IX. H Popper, F Schaffner (eds). Philadelphia, WB Saunders, 1990, pp 555–566
4. Chapman RW: Primary sclerosing cholangitis. Clinical presentation, pathogenesis and treatment.In Autoimmune Liver Diseases. EL Krawitt, RH Wiesner (eds). New York, Raven Press, 1991, pp 191–203
5. Perrett AD, Higgins G, Johnston HH, Massarella GR, Truelove SC, Wright R: The liver in ulcerative colitis. QJ Med 40:211–238, 1971