title: Erratum to: Commonalities and Challenges in the Development of Clinical Trial Measures in Neurology.
authors.affiliation: Neurology Early Clinical Development, Biogen Idec, 14 CambridgeCenter, Cambridge, MA, 02142, USA, jesse.cedarbaum@biogenidec.com.
authors.forename: Jesse M
authors.initials: JM
authors.lastname: Cedarbaum
authors.forename: Diane
authors.initials: D
authors.lastname: Stephenson
authors.forename: Richard
authors.initials: R
authors.lastname: Rudick
authors.forename: Maria C
authors.initials: MC
authors.lastname: Carrillo
authors.forename: Glenn
authors.initials: G
authors.lastname: Stebbins
authors.forename: Douglas
authors.initials: D
authors.lastname: Kerr
authors.forename: Jill
authors.initials: J
authors.lastname: Heemskerk
authors.forename: Wendy R
authors.initials: WR
authors.lastname: Galpern
authors.forename: Petra
authors.initials: P
authors.lastname: Kaufmann
authors.forename: David
authors.initials: D
authors.lastname: Cella
authors.forename: Maria
authors.initials: M
authors.lastname: Isaac
authors.forename: Marc K
authors.initials: MK
authors.lastname: Walton