Letters to the Editor - The New York Times
Ronnie's Renegade: Prevention of athletic-based Post-Concussion Syndrome
Upset over damage to players, ESPN football analyst walks away
Report: ESPN/ABC analyst steps down, cites brain trauma on field
Dave Pell's Next Draft August 30th, 2017
A Giant Laid Low by Too Many Blows to the Head - The New York Times
ESPN Football Analyst Walks Away, Disturbed by Brain Trauma on Field - The New York Times
ESPN football analyst steps down due to ethical concerns about brain trauma
Uncle Mike's Musings: A Yankees Blog and More: September 2022
ESPN Football Analyst Walks Away, Disturbed by Brain Trauma on Field - The New York Times
Wilber Marshall's return of a fumble against the Los Angeles Rams is an enduring memory of the 1985 Chicago Bears - ESPN
Football analyst Ed Cunningham resigns over brain safety