[size=12pt]New Advice by N.F.L. in Handling Concussions[/size]
new york times
Published: August 21, 2007

...But in a move that runs counter to the league’s medical study findings, the N.F.L. announced last week, in a news release highlighting safety procedures toward player concussions, that teams should not return formerly unconscious players to the game or practice in which they were injured...