TY - JOUR AU - Levin, B TI - Screening and surveillance for the early detection of colorectal cancer and adenomatous polyps, 2008: a joint guideline from the American Cancer Society, the US Multi-Society Task Force on Colorectal Cancer, and the American College of Radiology JO - Gastroenterology VL - 134 PY - 2008 DO - 10.1053/j.gastro.2008.02.002 L3 - PubMed-ID: 18384785 SP - 1570 EP - 1595 N1 - et al. ER -