TY - JOUR T1 - Using the Upshur principles to discuss medical fitness to drive JF - Canadian Family Physician JO - Can Fam Physician SP - 269 LP - 272 VL - 63 IS - 4 AU - Erica Weir Y1 - 2017/04/01 UR - http://www.cfp.ca/content/63/4/269.abstract N2 - ER -