Affiliations: UCLA School of Medicine, Division of Pediatric
Neurology, Los Angeles, CA 90095-1752, U.S.A.
Note: [] Correspondence: Prof. Dr. W. Donald Shields, UCLA School of
Medicine, Division of Pediatric Neurology, Los Angeles, CA 90095-1752, U.S.A.
Fax: 310 825 58 34; E-mail: wshields@mednet.ucla.edu