[1] Astex Pharmaceut, Cambridge, England
[2] IRCCS Casa Sollievo della Sofferenza Hosp, Gastroenterol Unit, San Giovanni Rotondo, Italy
[3] Univ Coll London UCL, Inst Liver & Digest Hlth, Royal Free Hosp, London, England
[4] Tallinn Univ Technol TTU, Dept Gene Technol, IVEX Lab, Tallinn, Estonia
[5] St Annes Univ Hosp, CTM, ICRC, Brno, Czech Republic
[6] Univ Barcelona, Inst Biomed IBUB, Dept Bioquim & Biol Mol, Barcelona, Spain
[7] Univ Palermo, Sect Human Anat, Dept Expt Biomed & Clin Neurosci, Palermo, Italy
[8] Euro Mediterranean Inst Sci & Technol IEMEST, Palermo, Italy
[9] Astex Pharmaceut, Pleasanton, CA USA