A revised factor structure for the post-concussion symptom scale: baseline and postconcussion factors
An analysis of specific lower extremity injury rates on grass and fieldturf playing surfaces in National Football League games: 2000-2009 seasons
Melancholy thoughts
Nine-year risk of depression diagnosis increases with increasing self-reported concussions in retired professional football players
The Swedish National Anterior Cruciate Ligament Register: a report on baseline variables and outcomes of surgery for almost 18,000 patients