Recent advances in Duchenne and Becker muscular dystrophy.

The recent identification of the gene and gene product altered in Duchenne and Becker dystrophy has opened up new and exciting avenues to an understanding of these diseases. This article presents the clinical features, pathology, genetics, and management of Duchenne and Becker muscular dystrophy. These issues are discussed in light of the rapidly accumulating knowledge concerning the molecular basis for the two disorders.