TY - JOUR T1 - Response JF - Canadian Family Physician JO - Can Fam Physician SP - 1659 LP - 1660 VL - 53 IS - 10 AU - Bruce Empringham Y1 - 2007/10/01 UR - http://www.cfp.ca/content/53/10/1659.2.abstract N2 - ER -