[1] Department of Neurosurgery,
[2] Royal Manchester Children's Hospital,undefined
[3] Manchester M27 4HA,undefined
[4] UK,undefined
[5] Tel.: (44) 161-79 44 696,undefined
[6] Fax: (44) 161-72 72 137,undefined
[7] Willink Biochemical Genetics Unit,undefined
[8] Royal Manchester Children's Hospital,undefined
[9] Manchester M27 1HA,undefined
[10] UK,undefined