[Clinical manifestations and mode of inheritance of hereditary spastic paraplegia in 20 families].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009128:Muscle Spasticity / Q000235:genetics; D010264:Paraplegia / Q000235:genetics*