TY - GEN AU - Baumgart,D C AU - Dignass,A U TI - [Tacrolimus (FK506) in refractory ulcerative colitis: an alternative to proctocolectomy?] SN - 0044-2771 PY - 2005///1115 N1 - Publication Type: Comment; Journal Article UR - https://doi.org/10.1055/s-2003-40174 ER -