TY  - RPRT
TI  - [Ulcerative colitis? Guidelines 2004].
AU  - B Siegmund
AU  - M Zeitz
PY  - 2005
DO  - 10.1024/0369-8394.94.41.1599
UR  - https://pubmed.ncbi.nlm.nih.gov/16245638/
ID  - 16245638
ER  -