Global and regional brain atrophy is associated with low or retrograde facial vein flow in multiple sclerosis(1219 views)(PDF public228 views) Jakimovski D, Marr K, Mancini M, Caprio MG, Gandhi S, Bergsland N, Paunkoski I, Hagemeier J, Chandra A, Weinstock-guttman B, Zivadinov R