Defining the natural history of MS: the need for complete data and rigorous definitions.
Confavreux
C
C
D018450:Disease Progression; D006801:Humans; D020528:Multiple Sclerosis, Chronic Progressive / Q000145:classification* / Q000503:physiopathology*; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000145:classification* / Q000503:physiopathology*