[1] Univ Libre Bruxelles, Lab Expt Gastroenterol, Brussels, Belgium
[2] Free Univ Brussels, Erasme Hosp, Pathol, B-1050 Brussels, Belgium
[3] DIAPATH Ctr Microscopy & Mol Imaging CMMI, Gosselies, Belgium
[4] Free Univ Brussels, Erasme Hosp, Gastroenterol & Hepatopancreatol, B-1050 Brussels, Belgium
[5] Catholic Univ Louvain, Inst Rech Expt & Clin, Lab Hepatogastroenterol, B-1200 Brussels, Belgium
[6] INSERM, CRI, U1149, Paris, France
[7] Univ Paris Diderot, UMR S 1149, Paris, France