Article
Spinal muscular atrophy: clinical classification and disease heterogeneity.
Journal of child neurology - 1 Aug 2007
Russman Barry S
Abstract excerpt
The clinical classification of spinal muscular atrophy, caused by deletion of the survival motor neuron 1 gene (SMN1), is based on age at onset and maximum function achieved. Evidence suggests that maximum function achieved is more closely related to life expectancy than age at onset. Therefore,...
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