TY - JOUR T1 - Head first JF - Canadian Family Physician JO - Can Fam Physician SP - 1131 LP - 1132 VL - 53 IS - 7 AU - Mark Robert Keezer AU - Anand Rughani AU - Matthew Carroll AU - Barbara Haas Y1 - 2007/07/01 UR - http://www.cfp.ca/content/53/7/1131.abstract N2 - ER -