Authors: Bernard Levin; David A Lieberman; Beth McFarland; Robert A Smith; Durado Brooks; Kimberly S Andrews; Chiranjeev Dash; Francis M Giardiello; Seth Glick; Theodore R Levin; Perry Pickhardt; Douglas K Rex; Alan Thorson; Sidney J Winawer Journal: CA Cancer J Clin Date: 2008-03-05 Impact factor: 508.702