Will This Device Protect Athletes' Brains, or Only Make Them Think It Does? - The New York Times
A.J. Klein Sends Strong Message After Re-Signing With Bills
Ranking the Most Valuable Bills: Linebacker A.J. Klein projects as 21st - Sports Illustrated Buffalo Bills News, Analysis and More
B/R CFB 250: The Overall Top 250 Players in College Football, News, Scores, Highlights, Stats, and Rumors
Carolina Panthers great Luke Kuechly promotes Q-Collar he believes extended his career - ESPN - Carolina Panthers Blog- ESPN
Report: Bills sign linebacker A.J. Klein
2011 Kentucky Football Media Guide by University of Kentucky Athletics - Issuu
Q-Collar gives Bills linebacker Klein sense of protection
Bills release LB AJ Klein in likely salary cap causality scenario
Luke Kuechly Wearing A Device To Help Prevent Concussions
Could experimental device protect Luke Kuechly from concussions?