Conference Proceedings
Defining secondary progressive multiple sclerosis
Johannes Lorscheider, Katherine Buzzard, Vilija Jokubaitis, Tim Spelman, Jeannette Lechner-Scott, Pam McCombe, Steve Vucic, Michael Barnett, Helmut Butzkueven, Tomas Kalincik
MULTIPLE SCLEROSIS JOURNAL | SAGE PUBLICATIONS LTD | Published : 2015