title: In reply.
authors.affiliation: Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK. Electronic address: hammertongl@cf.ac.uk.
authors.forename: Gemma
authors.initials: G
authors.lastname: Hammerton
authors.affiliation: Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK.
authors.forename: Stanley
authors.initials: S
authors.lastname: Zammit
authors.affiliation: Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK.
authors.forename: Ruth
authors.initials: R
authors.lastname: Sellers
authors.affiliation: Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK.
authors.forename: Anita
authors.initials: A
authors.lastname: Thapar
authors.affiliation: Institute of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK.
authors.forename: Stephan
authors.initials: S
authors.lastname: Collishaw
authors.affiliation: Centre for Academic Mental Health, University of Bristol, Bristol, UK.
authors.forename: Liam
authors.initials: L
authors.lastname: Mahedy
authors.affiliation: Centre for Academic Mental Health, University of Bristol, Bristol, UK.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Pearson