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Duchenne muscular dystrophy (DMD) is an X-linked inherited neuromuscular disease causing progressive muscular atrophy that leads to the loss of ambulation in childhood. Becker muscular dystrophy (BMD) is the milder phenotype of this same disease. Once considered a childhood disease, people with Duchenne and Becker muscular dystrophies (DBMD) currently live into their 20s, 30s, and even 40s. (1, 2)