TY - JOUR T1 - Response JF - Canadian Family Physician JO - Can Fam Physician SP - 1147 LP - 1147 VL - 53 IS - 7 AU - Nigel Flook AU - Peter Unge AU - Lars Agréus AU - Björn W. Karlson AU - Staffan Nilsson Y1 - 2007/07/01 UR - http://www.cfp.ca/content/53/7/1147.1.abstract N2 - ER -