Primary and transitional progressive MS - A clinical and MRI cross-sectional study

Stevenson, Vl; Miller, Dh; Rovaris, M; Barkhof, F; Brochet, B; Dousset, V; Dousset, V; Filippi, Massimo; Montalban, X; Polman, Ch; Rovira, A; de Sa, J; Thompson, Aj