http://www.wbur.org/2013/01/31/retired-nfl-player-harvard-study
WBUR
Former Pro On Harvard NFL Health Study: 'Long Time Coming'

<p style="margin-left:20px"><a href="https://www.harvardmagazine.com/2012/11/goodell-of-nfl-on-concussions-0 " target="_blank"> <img src="https://harvardmagazine.com/sites/default/files/HM_forWebRedesign_final.png" alt="View related Harvard Magazine article" title="View related Harvard Magazine article">Read more on this topic in <span style="font-style:italic; font-weight:600;">Harvard Magazine</span></a></p>