Global and regional brain atrophy is associated with low or retrograde facial vein flow in multiple sclerosis(1879 views)(PDF public271 views) Jakimovski D, Marr K, Mancini M, Caprio MG, Gandhi S, Bergsland N, Paunkoski I, Hagemeier J, Chandra A, Weinstock-guttman B, Zivadinov R