[1] Univ Calif San Diego, Dept Med, Div Rheumatol Allergy & Immunol, La Jolla, CA 92093 USA
[2] Inst Salud Carlos III, Biomed Res Ctr Hepat & Digest Dis CIBERehd, Madrid, Spain
[3] Hosp Gen Alicante, Fdn Invest, Alicante, Spain
[4] Univ Calif San Diego, Div Biol Sci, La Jolla, CA 92093 USA