DMD and Duchenne muscular dystrophy: Third, we did not perform correlations between performance on NIHTB‐CB based on DMD mutation location, although we have earlier shown that those with nonsense mutations in 3’ of DMD show objective deficits in working memory.35 We were agnostic to DMD mutation location because of our intended goal of using the NIHTB‐CB as a cognitive surveillance tool in DMD.