Recommendations of the Spanish Working Group on Crohn's Disease and Ulcerative Colitis (GETECCU) on the use of tiopurines in inflammatory bowel disease

1. Bermejo, F.
2. Aguas, M.
3. Chaparro, M.
4. Domènech, E.
5. Echarri, A.
6. García-Planella, E.
7. Guerra, I.
8. Gisbert, J.P.
9. López-Sanromán, A.