Hereditary Spastic Paraplegia In depth look at this disease by John K. Fink, M.D., including genetic analysis, clinical features and FAQs. http://www.med.umich.edu/hsp/

Hereditary Spastic Paraplegia HSP information sheet compiled by the National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/health_and_medical/disorders/hereditarysp.htm

The FSP Support Group For people suffering from Familial Spastic Paraplegia. Includes a newsletter, discussion forum, links, and contact details. http://www.fspgroup.org

GeneClinics: An Overview In depth details about hereditary spastic paraplegia. Includes a summary, definition, categories, diagnosis, genetic counseling and resources. http://www.geneclinics.org/profiles/hsp/

MCW Healthlink: HSP An article about hereditary spastic paraplegia, also called familial spastic paralysis. http://healthlink.mcw.edu/article/921730935.html

Spastic Paraplegia Foundation Supports on the upper motor neuron disorders hereditary spastic paraplegia and primary lateral sclerosis. Information about these conditions, disability resources, newsletters, news, announcements, research and support. http://sp-foundation.org/

National Urea Cycle Disorders Foundation Information about the organization as well as the disease. Family support, membership, newborn screening project and medical information. http://www.nucdf.org/