Former NFL quarterback Ken Stabler had brain disease CTE
Brain disease seen in most football players in large report, American Samoa
Ex-quarterback Ken Stabler suffered brain trauma - The Boston Globe
Ken Stabler found to have brain disease linked to head trauma. Here's what we know. - Vox
5 NFL Athletes Who Had CTE
Oakland Raiders Icon Ken Stabler Suffered 'Quite Severe' Brain Damage
Royal Palm Beach's Rose Stabler, ex-wife of Ken, sues NFL over CTE
Ken Stabler, the Swashbuckling Quarterback of the Badass 1970s Raiders, Had a Degenerative Brain Disease
Nearly all NFL players in study show evidence of brain disorder CTE
Former NFL quarterback Ken Stabler had brain disease CTE