RT Journal Article SR Electronic T1 Pure hereditary spastic paraplegia. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 499 OP 503 DO 10.1136/jmg.34.6.499 VO 34 IS 6 A1 E Reid YR 1997 UL http://jmg.bmj.com/content/34/6/499.abstract AB