A novel volume-reduced CT colonography regimen using hypertonic laxative (polyethylene glycol with ascorbic acid): randomized controlled trial. - Utano, Kenichi; Takayanagi, Daisuke; Nagata, Koichi; Aizawa, Masato; Endo, Shungo; Nemoto, Tetsutaro; Nemoto, Daiki; Isohata, Noriyuki; Lefor, Alan Kawarai; Togashi, Kazutomo (European Radiology, 2019)