spinal muscular atrophy(redirected from Juvenile Spinal Muscular Atrophy)
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Related to Juvenile Spinal Muscular Atrophy: Infantile spinal muscular atrophy, spinal muscle atrophy
spinal muscular atrophy
Any of several forms of a hereditary, progressive disease that involves loss of motor neurons in the spinal cord and brainstem and is characterized by muscle weakness and atrophy that vary in severity and age of onset.