RT Journal Article SR Electronic T1 Practical Enzymology of the Sphingolipidoses JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1068 OP 1069 DO 10.1136/jnnp.42.11.1068-c VO 42 IS 11 A1 E. J. Thompson YR 1979 UL http://jnnp.bmj.com/content/42/11/1068.4.abstract AB