[1] Division of Pathology and Infectious Diseases,
[2] University College London Medical School,undefined
[3] Mortimer Market Centre,undefined
[4] London WC1E 6AU,undefined
[5] UK e-mail: rmiller@gum.ucl.ac.uk,undefined
[6] Tel.: +44-171-380-9945,undefined
[7] Fax: +44-171-380-9669,undefined
[8] Department of Neurology,undefined
[9] University College London Medical School,undefined
[10] London W1P 6DB,undefined
[11] UK,undefined
[12] Department of Imaging,undefined
[13] University College London Hospitals,undefined
[14] London W1N 8AA,undefined
[15] UK,undefined
[16] Department of Neuropathology,undefined
[17] Institute of Neurology,undefined
[18] London WC1N 3BG,undefined
[19] UK,undefined