title: Author response.
authors: Daniel M
authors: DM
authors: Hartung
authors: Dennis N
authors: DN
authors: Bourdette
authors: Ruth H
authors: RH
authors: Whitham
mesh_terms: D001319:Authorship; D003365:Costs and Cost Analysis; D004345:Drug Industry; D006801:Humans; D009103:Multiple Sclerosis; D011643:Publishing