[1] Duke Clin Res Inst, GI Hepatol Res Program, Durham, NC USA
[2] Hosp Quiron Valencia, Valencia, Spain
[3] Barts & London Queen Marys Sch Med & Dent, London, England
[4] Med Univ Vienna, Vienna, Austria
[5] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, IL-69978 Tel Aviv, Israel
[6] Inst Gastroenterol & Hepatol, Iasi, Romania
[7] Med Univ Lodz, Lodz, Poland
[8] Univ Dusseldorf, Dusseldorf, Germany
[9] Intern Klin UVN Praha, Prague, Czech Republic
[10] Monash Med Ctr, Clayton, Vic 3168, Australia
[11] Kaohsiung Med Univ, Kaohsiung, Taiwan
[12] Human Genome Sci Inc, Rockville, MD USA
[13] Duke Clin Res Inst, Durham, NC USA