Global and regional brain atrophy is associated with low or retrograde facial vein flow in multiple sclerosis(1639 views)(PDF public236 views) Jakimovski D, Marr K, Mancini M, Caprio MG, Gandhi S, Bergsland N, Paunkoski I, Hagemeier J, Chandra A, Weinstock-guttman B, Zivadinov R