TY - JOUR T1 - Concussion in youth hockey JF - Canadian Medical Association Journal JO - CMAJ SP - 1175 LP - 1175 DO - 10.1503/cmaj.111-2052 VL - 183 IS - 10 AU - David Rhine Y1 - 2011/07/12 UR - http://www.cmaj.ca/content/183/10/1175.1.abstract ER -