[1] Newcastle Gen Hosp, Dept Anaesthesia & Intens Care, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[2] Newcastle Gen Hosp, Inst Hlth Elderly, Dept Old Age Psychiat, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[3] Newcastle Gen Hosp, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England