Ineffectiveness of Lactobacillus johnsonii LA1 for prophylaxis of postoperative recurrence in Crohn’s disease – A randomized, double-blind, placebo-controlled.

P Marteau, M Lémann, P Seksik, D Laharie, JF Colombel, Y Bouhnik, G Cadiot, JC Soulé, A Bourreille, EH Metman, E Lerebours, F Carbonnel, JL Dupas, M Veyrac, B Coffin, J Moreau, JY Mary and the GETAID