[1] Texas Liver Inst, San Antonio, TX USA
[2] Swedish Med, Seattle, WA USA
[3] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA
[4] Rush Univ, Med Ctr, Chicago, IL 60612 USA
[5] Stanford Univ, Palo Alto, CA 94304 USA
[6] Indiana Univ Sch Med, Indianapolis, IN 46202 USA
[7] Mt Sinai Beth Israel, New York, NY USA
[8] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[9] ID Care, Hillsborough, NJ USA
[10] Orlando Immunol Ctr, Orlando, FL USA
[11] Nashville Gastrointestinal Specialists Inc, Nashville, TN USA
[12] Med Associates Res Grp Inc, San Diego, CA USA
[13] Gilead Sci Inc, 353 Lakeside Dr, Foster City, CA 94404 USA
[14] Univ Miami, Miami, FL USA
[15] Digest CARE South Florida Ctr Gastroenterol, Wellington, FL USA
[16] Borland Groover Clin, Jacksonville, FL USA
[17] Massachusetts Gen Hosp, Boston, MA 02114 USA
[18] Indianapolis Gastroenterol Res Fdn, Indianapolis, IN USA
[19] Fdn Invest Diego, San Juan, PR USA
[20] Univ Penn, Philadelphia, PA 19104 USA
[21] Gastro One, Germantown, TN USA
[22] Auckland Clin Studies, Auckland, New Zealand