RT Journal Article SR Electronic T1 Late Onset Neurometabolic Genetic Disorders JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 176 OP 176 DO 10.1136/jmg.30.2.176-a VO 30 IS 2 A1 R M Gardiner YR 1993 UL http://jmg.bmj.com/content/30/2/176.2.abstract AB