title: Comment on "Chronic cerebrospinal venous insufficiency: have we found the cause and cure of MS?".
authors: Robert
authors: R
authors: Zivadinov
authors: Karen
authors: K
authors: Marr
mesh_terms: D006801:Humans; D009103:Multiple Sclerosis / Q000209:etiology*; D014689:Venous Insufficiency / Q000150:complications*