[1] CHU Rangueil, Serv Chirurg Digest & Transplantat, F-31059 Toulouse 9, France
[2] CHU Rangueil, Serv Nephrol & Transplantat Organes, F-31059 Toulouse 9, France
[3] CHU Rangueil, Inserm U858, Inst Federatif Rech 31, F-31059 Toulouse 9, France
[4] CHU Purpan, Serv Hepatol, Toulouse, France
[5] CHU Purpan, Serv Anatomopathol, Toulouse, France