Global and regional brain atrophy is associated with low or retrograde facial vein flow in multiple sclerosis(1927 views)(PDF public273 views) Jakimovski D, Marr K, Mancini M, Caprio MG, Gandhi S, Bergsland N, Paunkoski I, Hagemeier J, Chandra A, Weinstock-guttman B, Zivadinov R