PT - JOURNAL ARTICLE AU - Flook, Nigel AU - Unge, Peter AU - Agréus, Lars AU - Karlson, Björn W. AU - Nilsson, Staffan TI - Response DP - 2007 May 01 TA - Canadian Family Physician PG - 808--808 VI - 53 IP - 5 4099 - http://www.cfp.ca/content/53/5/808.1.short 4100 - http://www.cfp.ca/content/53/5/808.1.full SO - Can Fam Physician2007 May 01; 53