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Primary Lateral Sclerosis
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Neurodegenerative disorders which affect control of the voluntary muscles.

Primary Lateral Sclerosis
Article describes primary lateral sclerosis (PLS), its symptoms, diagnosis, and treatment. From the About.com Guide to Rare/Orphan Diseases.

SPF: Primary Lateral Sclerosis
Information from the Spastic Paraplegia Foundation. Site also offers newsletter, support, and resources.

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