title: Reply: To PMID 23737007.
authors.affiliation: Sobell Department of Motor Neuroscience and Movement Disorders, UCL Institute of Neurology, Queen Square, London, UK.
authors.forename: Isabel
authors.initials: I
authors.lastname: Parees
authors.forename: Tabish A
authors.initials: TA
authors.lastname: Saifee
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Edwards
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000150:complications*; D013001:Somatoform Disorders / Q000175:diagnosis*