NFL to evaluate roughing-the-passer rule: AP source
Tom Brady Weighs In On The NFL's Concussion Controversy - The Spun: What's Trending In The Sports World Today
A Harvard study concludes NFL healthcare needs an overhaul. Does it? - The Boston Globe
New: 87 Deceased NFL Players Test Positive for Brain Disease
NFL history: 100 people who shaped the league, pro football - Sports Illustrated
Forget Jets-Giants clash, biggest concern should be for Darrelle Revis' health, future – New York Daily News
Concussion Protocol & Return-to-Participation Protocol: Overview
Bengals QB Joe Burrow says concussions, other injuries are part and parcel of being an NFL player
The NFL and Concussions: The Overlooked Obvious - Bolts From The Blue