TY - RPRT TI - CT colonography: progress toward colorectal evaluation without catharsis. AU - Elizabeth G McFarland AU - Michael E Zalis PY - 2004 DO - 10.1053/j.gastro.2004.09.060 UR - https://pubmed.ncbi.nlm.nih.gov/15521027/ ID - 15521027 ER -