RT Journal Article SR Electronic T1 A 15-year-old rugby player with a head injury JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 200 OP 202 DO 10.1503/cmaj.141089 VO 187 IS 3 A1 Hoang Pham A1 Roger Zemek YR 2015 UL http://www.cmaj.ca/content/187/3/200.abstract