Chronic cerebrospinal venous insufficiency in patients with multiple sclerosis
P Zamboni, R Galeotti, E Menegatti, A M Malagoni, G Tacconi, S Dall’Ara, I Bartolomei, F Salvi
Journal of Neurology, Neurosurgery & Psychiatry Apr 2009, 80 (4) 392-399; DOI: 10.1136/jnnp.2008.157164