http://www.bloombergview.com/articles/2015-02-23/nfl-knocks-out-its-concussion-study
Much like the domestic violence problem, the NFL has lost the benefit of the doubt when it comes to concussions. A league that says the use of helmets reduces the risk of brain injury by “only 20 percent” and hires a non-full-time, non-concussion-expert as its first chief medical officer can’t expect us to take it seriously…
All Things Chronic 