%0 Journal Article %T Perils of Race-Based Norms in Cognitive Testing: The Case of Former NFL Players. %A Possin KL %A Tsoy E %A Windon CC %J JAMA Neurol %V 78 %N 4 %D 04 2021 1 %M 33346785 %F 29.907 %R 10.1001/jamaneurol.2020.4763