[1] Inova Fairfax Hosp, Ctr Liver Dis, Dept Med, Falls Church, VA USA
[2] Ctr Outcomes Res Liver Dis, Washington, DC USA
[3] Toronto Ctr Liver Dis, Toronto, ON, Canada
[4] Goethe Univ Frankfurt, Med Ctr, Frankfurt, Germany
[5] Johns Hopkins Univ, Baltimore, MD USA
[6] Queen Mary Univ London, London, England
[7] Casa Sollievo Sofferenza Hosp, San Giovanni Rotondo, Italy
[8] Intermt Med Ctr, Salt Lake City, UT USA
[9] Baylor Univ, Med Ctr, Dallas, TX USA
[10] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA