Professional Football may be Linked to Brain Injuries Usually Seen in Boxing
BMJ 356:j811, Hawkes, N., 2017
Progressive Stroke Following Soccer Playing
Arch Neurol 59:1484-1485, Haussermann,P.,et al, 2002
Chronic Traumatic Brain Injury in Professional Soccer Players
Neurol 51:791-796, Matser,J.T.,et al, 1998