[1] Mt Sinai Sch Med, Bronx Vet Affairs Med Ctr, Div Infect Dis & Liver Dis, New York, NY 10029 USA
[2] Mt Sinai Sch Med, Div Infect Dis, New York, NY USA
[3] Mt Sinai Sch Med, Div Liver Dis, New York, NY USA
[4] Univ Calif San Francisco, VA Med Ctr, Sch Med, San Francisco, CA USA
[5] Cornell Univ, Presbyterian Hosp, Weill Coll Med, New York, NY USA
[6] Miriam Hosp, Brown Med Sch, Providence, RI 02906 USA
[7] Univ Turin, Toronto Gen Hosp, Sch Med, Toronto, ON, Canada
[8] Johns Hopkins Sch Med, Baltimore, MD USA
[9] Yale Univ, VA Med Ctr, Sch Med, New Haven, CT USA
[10] Univ Texas, SW Med Ctr, Dallas, TX USA
[11] VA Med Ctr, Salisbury, NC USA
[12] Virginia Commonwealth Univ, Med Coll Virginia, Richmond, VA 23298 USA
[13] Calif Pacific Med Ctr, San Francisco, CA USA
[14] SUNY Downstate Hlth Sci Ctr, VA New York Harbor Hlth Care Syst, Brooklyn, NY USA
[15] NYU, Sch Med, VA New York Harbor Hlth Care Syst, New York, NY USA