SMA type 3 is a hereditary disease that affects motor neurons. People may also refer to it as Kugelberg-Welander disease. Symptoms usually begin after 18 months of age. Children with SMA type 3 can ...
Spinal muscular atrophy type 3 is a rare and less severe form of the condition. Symptoms usually start in childhood or adolescence, and life expectancy is typically unaffected. Treatment may help slow ...
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