Buttmann, M Local pain during REBIF injection is not due to acidic pH. [electronic resource] - Journal of neurology, neurosurgery, and psychiatry Jul 2004 - 1078 p. digital Publication Type: Letter ISSN: 0022-3050 Standard No.: 10.1136/jnnp.2003.025114 doi Subjects--Topical Terms: Acids--analysisAdjuvants, Immunologic--administration & dosageHumansHydrogen-Ion ConcentrationInjections, SubcutaneousInterferon beta-1aInterferon-beta--administration & dosageMultiple Sclerosis--drug therapyPain--chemically inducedSingle-Blind Method