title: Diagnosis: one useful method among many.
authors.affiliation: Division of Psychiatry, University College London, Charles Bell House, London, W1W 7EJ. Electronic address: joseph.hayes@ucl.ac.uk.
authors.forename: Joseph
authors.initials: J
authors.lastname: Hayes
authors.affiliation: Division of Psychiatry, University College London, Charles Bell House, London, W1W 7EJ.
authors.forename: Vaughan
authors.initials: V
authors.lastname: Bell