title: The challenge of follow-on biologics for treatment of multiple sclerosis.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Rivera
mesh_terms: D001688:Biological Products / Q000627:therapeutic use*; D017277:Drug Approval; D006801:Humans; D016899:Interferon-beta / Q000627:therapeutic use; D009103:Multiple Sclerosis / Q000628:therapy*; D013810:Therapeutic Equivalency
chemical_list: D001688:Biological Products; D016899:Interferon-beta