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spinal muscular atrophy
spinal muscular atrophy Spinal muscular atrophy is a group of usually inherited disorders in which motor neurons in the spinal cord progressively degenerate, leading to increasing muscle weakness and wasting.
Spinal muscular atrophy is a group of usually inherited disorders in which motor neurons in the spinal cord progressively degenerate, leading to increasing muscle weakness and wasting. It generally occurs without signs of damage to the corticospinal tracts and includes forms such as Werdnig-Hoffmann disease and later-onset childhood types.