title: [Superiority of interferon beta-1b in comparison with interferon beta-1a in multiple sclerosis. 2 years outcomes reveal that clinical advantages increase over time].
mesh_terms: D002986:Clinical Trials as Topic; D005500:Follow-Up Studies; D006801:Humans; D000068556:Interferon beta-1a; D000068576:Interferon beta-1b; D016899:Interferon-beta / Q000009:adverse effects / Q000627:therapeutic use*; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000175:diagnosis / Q000188:drug therapy*; D009460:Neurologic Examination / Q000187:drug effects; D016896:Treatment Outcome
chemical_list: D000068576:Interferon beta-1b; D016899:Interferon-beta; D000068556:Interferon beta-1a