TY - JOUR T1 - Is 45 the new 50 in colorectal cancer screening? JF - Canadian Family Physician JO - Can Fam Physician SP - 743 LP - 743 VL - 66 IS - 10 AU - Paul Fritsch AU - Clarence Wong AU - Michael R. Kolber Y1 - 2020/10/01 UR - http://www.cfp.ca/content/66/10/743.abstract N2 - ER -