Multiple sclerosis 1 (2013): 1508–1517. info:cnr-pdr/source/autori:Comi G, Battaglia MA, Bertolotto A, Del Sette M, Ghezzi A, Malferrari G, Salvetti M, Sormani MP, Tesio L, Stolz E, Zaratin P, Mancardi G, CoSMo Collaborative Study Group, Mancini M/titolo:Observational case-control study of the prevalence of chronic cerebrospinal venous insufficiency in multiple sclerosis: results from the CoSMo study/doi:/rivista:Multiple sclerosis/anno:2013/pagina_da:1508/pagina_a:1517/intervallo_pagine:1508–1517/volume:1