TY  - RPRT
TI  - Does interferon beta help in secondary progressive MS?
AU  - Jeffrey A Cohen
AU  - Jack P Antel
PY  - 2004
DO  - 10.1212/01.wnl.0000147171.32178.48
UR  - https://pubmed.ncbi.nlm.nih.gov/15557486/
ID  - 15557486
ER  -