[1] Univ Nice Sophia Antipolis, Pole Digestif CHU Nice, Serv Chirurg Digest, Fac Med, F-06107 Nice 3, France
[2] Univ Nice Sophia Antipolis, Pole Digestif CHU Nice, Ctr Transplantat Hepat, Fac Med, F-06107 Nice 3, France
[3] CHU Nice, Dept Gastroenterol, F-06202 Nice, France
[4] CHU Nice, Funct Unit, F-06202 Nice, France