[1] Univ Barcelona, Dept Biomed, Sch Med, Barcelona, Spain
[2] Ctr Invest Biomed Red Enfermedades Hepat & Digest, Inst Dinvestigac Biomed August Pi Sunyer IDIBAPS, Barcelona, Spain
[3] Univ Barcelona, Hosp Clin, Liver Transplant Unit, Inst Clin Malalties Digest Metab ICMDM, Barcelona, Spain
[4] MIT, Inst Med Engn & Sci, Cambridge, MA USA
[5] Harvard Med Sch, Brigham & Womens Hosp, Boston, MA USA
[6] Hosp Clin Univ, Biochem & Mol Genet Serv, Barcelona, Spain