1. National Institutes of HealthAutoimmune Diseases Coordinating CommitteeAutoimmune Diseases Research Plan2004 Aug 1http://www.niaid.nih.gov/dait/pdf/ADCC_Report.pdf
2. University of Maryland MedicineChronic Liver Disease2004 Aug 12http://www.umm.edu/liver/chronic.htm
3. Primary biliary cirrhosis
4. WormanHJWhat is Primary Biliary Cirrhosis?2004 Mar 12http://cpmcnet.columbia.edu/dept/gi/PBC.html