TY  - RPRT
TI  - Interferon beta-1a in primary progressive multiple sclerosis.
AU  - Siobhan M Leary
AU  - Alan J Thompson
PY  - 2003
DO  - 10.1016/s0022-510x(02)00350-7
UR  - https://pubmed.ncbi.nlm.nih.gov/12559514/
ID  - 12559514
ER  -