[1] Univ Calif San Diego, Ctr Inflammatory Bowel Dis, Div Gastroenterol, La Jolla, CA 92093 USA
[2] VA San Diego Healthcare Syst, San Diego, CA 92161 USA
[3] Scripps Res Inst, Dept Physiol Chem, La Jolla, CA 92037 USA
[4] Laikon Gen Hosp, Acad Dept Gastroenterol, Athens, Greece
[5] Univ Colorado Hlth Sci, Dept Pathol, Aurora, CO USA
[6] Receptos Inc, La Jolla, CA USA