[1] Epatoctr Ticino, Via Soldino 5, Lugano, Switzerland
[2] Osped Reg Bellinzona, Dermatol Ente Osped Cantonale, Bellinzona, Switzerland
[3] Osped Reg Bellinzona, Serv Gastroenterol, Bellinzona, Switzerland
[4] Univ Bern, Dermatol Klin, Dermatopathol Labor, Bern, Switzerland
[5] Ist Cantonale Patol, Locarno, Switzerland
[6] Univ Milano Bicocca, San Gerardo Hosp, Program Autoimmune Liver Dis, Int Ctr Digest Hlth, Monza, Italy
[7] Univ Calif Davis, Sch Med, Div Rheumatol Allergy & Clin Immunol, 451 Hlth Sci Dr,Suite 6510, Davis, CA 95616 USA