TY - RPRT TI - Collagenous colitis associated with Clostridium difficile: a cause effect? AU - Tolga Erim AU - Waleed M Alazmi AU - Colm J O'Loughlin AU - Jamie S Barkin PY - 2003 DO - 10.1023/a:1024127713979 UR - https://pubmed.ncbi.nlm.nih.gov/12870798/ ID - 12870798 ER -