Neurosurgery
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A 6-year study was performed to determine the circumstances, causes, and outcomes of concussions in the National Football League. ⋯ The professional football players most vulnerable to concussions are quarterbacks, wide receivers, and defensive secondaries. Concussions involved 2.74 symptoms/injury, and players were generally removed from the game. More than one-half of the players returned to play within 1 day, and symptoms resolved in a short time in the vast majority of cases.