RT Journal Article SR Electronic T1 Sports-related concussion JF Neurology: Clinical Practice FD Lippincott Williams & Wilkins SP 277 OP 278 DO 10.1212/CPJ.0b013e3182a1ba46 VO 3 IS 4 A1 Brian Hainline A1 William W. Dexter A1 John DiFiori YR 2013 UL http://cp.neurology.org/content/3/4/277.abstract AB