[1] Univ Calif Davis, Sch Med, Div Rheumatol Allergy & Clin Immunol, Genome & Biomed Sci Facil, Davis, CA 95616 USA
[2] Inst Clin Humanitas, Hepatobiliary Immunopathol Unit, Rozzano, Italy
[3] Toyama Univ, Dept Diagnost Pathol, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama, Japan
[4] Biogen Idec Inc, San Diego, CA USA
[5] Univ Colorado, Denver Sch Med, Denver, CO 80202 USA
[6] Natl Jewish Med & Res Ctr, Denver, CO USA
[7] Univ Calif Davis, Sch Med, Dept Dermatol, Sacramento, CA 95817 USA
[8] Mayo Clin Fdn, Div Gastroenterol & Hepatol, Rochester, MN USA
[9] Monash Univ, Dept Microbiol, Clayton, Vic 3168, Australia
[10] Emory Univ, Sch Med, Dept Pathol, Atlanta, GA 30322 USA