2. Helzberg JH, Petersen JM, Boyer JL. Improved survival with
primary sclerosing cholangitis: a review of clinicopathologic features and
comparison of symptomatic and asymptomatic patients. Gastroenterology
1987; 92: 1869-1875.
3. Angulo P and Lindor KD. Primary sclerosing cholangitis.
Hepatology 1999; 30: 325-332.
4. Jamidar PA, Beck GJ, Hoffman B, et al. Endoscopic retrograde
cholangiopancreatography in Pregnancy. Amer J Gastro 1995; 90: 1263-1267.
5. Hoffman B and Cunningham J. Radiation exposure to the pregnant
patient during ERCP. Gastrointest Endosc 1992; 38: 109 [abstract].
6. Janczewska I, Olsson R, Hultcrantz R, et al. Pregnancy
in patients with primary sclerosing cholangitis. Liver 1996; 16: 326-330.
7. Stiehl A, Walker S, Stiehl L, et al. Effect of ursodeoxycholic
acid on liver and bile duct disease in primary sclerosing cholangitis. A 3
year pilot study with a placebo-controlled study period. J Hepatology
1994; 20: 57-64.
8. Harnois DM, Angulo P, Jorgensen R, et al. High-dose ursodeoxycholic
acid as a therapy for patients with primary sclerosing cholangitis. Amer
J Gastro 2001; 96: 1558-1561.
9. Angulo P. Use of ursodeoxycholic acid in patients with liver disease. Curr
Gastroenterol Rep. 2002 Feb;4(1):37-44.
