Reduced Cathartic Bowel Preparation for CT Colonography: Prospective Comparison of 2-L Polyethylene Glycol and Magnesium CitrateKeedy, Alexander W.; Yee, Judy; Aslam, Rizwan; Weinstein, Stefanie; Landeras, Luis A.; Shah, Janak N.; McQuaid, Kenneth R.; Yeh, Benjamin M. · Radiology · 2011