http://www.liverfoundation.org/abouttheliver/info/psc/ primary sclerosing cholangitis Primary Sclerosing Cholangitis (PSC) primary sclerosing cholangitis primary sclerosing cholangitis primary sclerosing cholangitis Primary sclerosing cholangitis (PSC) Primary sclerosing cholangitis (PSC) primary sclerosing cholangitis primary sclerosing cholangitis Primary Sclerosing Cholangitis (PSC)