Dake, Michael D Chronic cerebrospinal venous insufficiency in multiple sclerosis: a historical perspective. [electronic resource] - Functional neurology - 181-95 p. digital Publication Type: Historical Article; Journal Article ISSN: 0393-5264 Subjects--Topical Terms: Central Nervous System--blood supplyCerebrovascular Disorders--historyChronic DiseaseHistory, 19th CenturyHistory, 20th CenturyHistory, 21st CenturyHumansMultiple Sclerosis--historyNeurology--historySpinal Cord Diseases--historyVenous Insufficiency--history