Treating MS: better sooner than later.
D000328:Adult; D018450:Disease Progression; D006801:Humans; D000068556:Interferon beta-1a; D016899:Interferon-beta / Q000627:therapeutic use*; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000188:drug therapy*; D013997:Time Factors
D016899:Interferon-beta; D000068556:Interferon beta-1a