Sports-related concussions not proved to cause later brain disease, says expert group, Science

From The Magazine: Are You Current On Concussions? - The Chronicle of the Horse

Explainer: what we know about concussion in Australian sport, Concussion in sport

Striking Evidence Linking Football to Brain Disease Sparks Calls for More Research

Book: How one flawed study launched a wave of CTE hysteria

ISU researcher Dr. Nikki Hoffman is leading expert on sleep and concussion recovery

A new study shows that hits to the head, not concussions, cause CTE - The Washington Post

Experts in concussion, NFL leaders gather to identify gaps in knowledge, offer guidelines on preventing brain injuries - KTVZ

Sports Concussions - De Caro & Kaplen, LLP

Concussions and Traumatic Brain Injuries in Football: What We Know We Don't Know

Explaining the NFL's latest concussion controversy and policy change : NPR

Experts say influential group's guidance on CTE is too weak

Second Impact Syndrome - Physiopedia

Head injuries clearly linked to brain damage