title: Response.
authors.affiliation: Cardiff University School of Medicine, Cardiff, UK.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Best
authors.affiliation: Institute of Medicine Education, Cardiff University School of Medicine, Cardiff, UK and St George's Hospital, Tooting, London, UK.
authors.forename: Jason Leo
authors.initials: JL
authors.lastname: Walsh
authors.affiliation: Institute of Medicine Education, Cardiff University School of Medicine, Cardiff, UK and St Anne's College, University of Oxford, Oxford, UK.
authors.forename: Benjamin Howell
authors.initials: BH
authors.lastname: Lole Harris
authors.affiliation: Centre of Medical Education, Cardiff University School of Medicine, Cardiff, UK.
authors.forename: David
authors.initials: D
authors.lastname: Wilson