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Journal of Neurodegenerative Diseases
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Journal of Neurodegenerative Diseases
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2013
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Article
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Tab 1
Clinical Study
Clinical and Genetic Study of Algerian Patients with Spinal Muscular Atrophy
Table 1
Classification of autosomal recessive proximal spinal atrophy as defined by Zerres et al. [
26
].
Type
Definition
I
Never able to sit
II
Able to sit but not to walk
Able to walk
III
(a) Onset before 3 years
(b) Onset 3–30 years
IV
Onset after 30 years