TY - JOUR AU - Barclay, R L; Vicari, J J; Doughty, A S TI - Colonoscopic withdrawal times and adenoma detection during screening colonoscopy JO - NEJM VL - 355 PY - 2006 DO - 10.1056/NEJMoa055498 SP - 2533 EP - 2541 N1 - et al. ER -