TY - JOUR T1 - Harnessing the power of longitudinal data JF - Canadian Family Physician JO - Can Fam Physician SP - 355 LP - 355 VL - 62 IS - 4 AU - David Barber AU - Rachael Morkem AU - John A. Queenan AU - Karen Hall Barber Y1 - 2016/04/01 UR - http://www.cfp.ca/content/62/4/355.abstract N2 - ER -