TY  - RPRT
TI  - Secondary progressive multiple sclerosis: current knowledge and future challenges.
AU  - Marco Rovaris
AU  - Christian Confavreux
AU  - Roberto Furlan
AU  - Ludwig Kappos
AU  - Giancarlo Comi
AU  - Massimo Filippi
PY  - 2006
DO  - 10.1016/s1474-4422(06)70410-0
UR  - https://pubmed.ncbi.nlm.nih.gov/16545751/
ID  - 16545751
ER  -