TY - JOUR AU - Williams, J E; Le, T D; Faigel, D O TI - Polypectomy rate as a quality measure for colonoscopy JO - Gastrointest Endosc VL - 73 PY - 2011 DO - 10.1016/j.gie.2010.08.008 SP - 498 EP - 506 ER -