Hard-to-see experimental device Luke Kuechly wears on field might save his brain
Q-Collar device to help prevent concussion worn at World Cup
A Wearable Collar Is Hoping To Provide A Major Breakthrough In Concussion Prevention Tech
Concussion prevention: Q-collar can reduce brain injury - Sports Illustrated
Tony Pollard Interview: His Approach and Why He Wears The Q-Collar
Luke Kuechly wearing experimental neck collar in 2017 - ESPN - Carolina Panthers Blog- ESPN
Q-Collar gives Bills linebacker Klein sense of protection
Peyton Football blazes a trail, outfits all its players with Q-Collars believed to reduce risk of brain injury, High School Sports
What is on Drue Tranquill's neck? Chargers LB spotted wearing Q-Collar to limit head trauma
What Are The Collars That NFL Players Are Wearing? Explained