- CTE study finds at least 1 in 4 NFL players suffered from disease The Washington Post
- Major Study Finds at Least 1 in 4 NFL Players Gets CTE The New York Times
- NFL: At least one in four dead players had brain disease, says study BBC
- At least 1 in 4 ex-NFL players who died from 2016 to 2021 had CTE, study finds CBS News
- New study reveals widespread signs of brain trauma among former NFL players PBS