[1] Newcastle Gen Hosp, MRC, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[2] Newcastle Gen Hosp, Dept Old Age Psychiat, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[3] Cent Hosp, Dept Psychiat, Warwick, England
[4] St Nicholas Hosp, Dept Psychiat, Newcastle Upon Tyne, Tyne & Wear, England
[5] Frenchay Hosp, Dept Healthcare Elderly, Bristol BS16 1LE, Avon, England