Comi Giancarlo, Hartung Hans-Peter, Martinelli Boneschi Filippo
Department of Neurology, Scientific Institute and University Ospedale San Raffaele, Via Olgettina 48, 20131, Milan, Italy.
Lancet Neurol. 2005 Feb;4(2):75-6; discussion 76-7. doi: 10.1016/S1474-4422(05)00975-0.