[1] Hop Paul Brousse, Hepatobiliary Ctr, Villejuif, France
[2] Azienda Osped Univ Pisana, Pisa, Italy
[3] Univ Hosp Gasthuisberg, B-3000 Louvain, Belgium
[4] Osped Niguarda Ca Granda, Milan, Italy
[5] Univ Hosp Rotterdam, Erasmus MC, Rotterdam, Netherlands
[6] Univ Hosp Essen, Essen, Germany
[7] Univ Med Ctr Leipzig, Leipzig, Germany
[8] Duke Univ, Med Ctr, Durham, NC USA
[9] Univ Med Ctr Hamburg Eppendorf, Hamburg, Germany
[10] Cleveland Clin Fdn, Cleveland, OH 44195 USA
[11] Novartis Pharmaceut, E Hanover, NJ USA
[12] Novartis Pharma AG, Basel, Switzerland