[1] Natl Hosp Norway, Oslo Univ Hosp, Norwegian Primary Sclerosing Cholangitis Res Ctr, N-0424 Oslo, Norway
[2] Natl Hosp Norway, Oslo Univ Hosp, Res Inst Internal Med, Div Canc Med Surg & Transplantat, N-0424 Oslo, Norway
[3] Natl Hosp Norway, Oslo Univ Hosp, Dept Med Biochem, N-0424 Oslo, Norway
[4] Natl Hosp Norway, Oslo Univ Hosp, Div Canc Med Surg & Transplantat, Sect Gastroenterol,Dept Transplantat Med, N-0424 Oslo, Norway
[5] Univ Oslo, Inst Clin Med, N-0316 Oslo, Norway
[6] Univ Oslo, Fac Med, Inst Clin Med, KG Jebsen Inflammat Res Ctr, N-0316 Oslo, Norway
[7] Mayo Clin, Coll Med, Ctr Basic Res Digest Dis, Div Gastroenterol & Hepatol, Rochester, MN USA
[8] Univ Gothenburg, Sahlgrenska Acad, Inst Med, Gothenburg, Sweden