title: Author response.
authors.forename: Vincent J
authors.initials: VJ
authors.lastname: Odekerken
authors.forename: Judith A
authors.initials: JA
authors.lastname: Boel
authors.forename: Ben A
authors.initials: BA
authors.lastname: Schmand
authors.forename: Rob M
authors.initials: RM
authors.lastname: de Bie
mesh_terms: D002986:Clinical Trials as Topic; D046690:Deep Brain Stimulation / Q000009:adverse effects / Q000523:psychology*; D006801:Humans; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000175:diagnosis / Q000523:psychology* / Q000628:therapy*; D016896:Treatment Outcome