TY - RPRT TI - Oral interferon beta-1a in relapsing-remitting multiple sclerosis: a double-blind randomized study. AU - C Polman AU - F Barkhof AU - L Kappos AU - C Pozzilli AU - R Sandbrink AU - F Dahlke AU - P Jakobs AU - A Lorenz AU - European Oral Interferon Beta-1a in Relapsing-Remitting MS Study Group PY - 2003 DO - 10.1191/1352458503ms923oa UR - https://pubmed.ncbi.nlm.nih.gov/12926838/ ID - 12926838 ER -