PT - JOURNAL ARTICLE AU - Nancy Benac TI - American doctors urge medical evaluations for all concussed athletes AID - 10.1503/cmaj.109-3739 DP - 2011 Jan 11 TA - Canadian Medical Association Journal PG - E29--E30 VI - 183 IP - 1 4099 - http://www.cmaj.ca/content/183/1/E29.short 4100 - http://www.cmaj.ca/content/183/1/E29.full SO - CMAJ2011 Jan 11; 183