[Statement of SMBOE OTT--about chronic cerebrospinal insufficiency in multiple sclerosis].
D001921:Brain / Q000098:blood supply; D002560:Cerebrovascular Circulation; D006801:Humans; D009103:Multiple Sclerosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology*; D018608:Ultrasonography, Doppler