Head Injury in Sport
BMJ 308:1620-1624, McLatchie,G.&Jennett,B., 1994
Mild Traumatic Brain Injury,Toward Understanding Manifestations and Treatment
Arch Int Med 158:90-97, Kushner,D., 1998
Amnestic States in Football Trauma
Neurol 22:432, Yarnell,P.R.,et al, 1972