1. University of Edinburgh; Centre for Clinical Brain Sciences; Edinburgh UK
2. West China Hospital, Sichuan University; Department of Neurology; Chengdu China
3. Bashkir State Medical University; Department of Neurology, Neurosurgery and Medical Genetics; Ufa Russian Federation
4. University of Glasgow; Nursing & Health Care School; 59 Oakfield Avenue Glasgow UK G128LL
5. Glasgow Caledonian University; Nursing, Midwifery and Allied Health Professions Research Unit; Buchanan House Cowcaddens Road Glasgow UK G4 0BA
6. Western General Hospital; Department of Medicine for the Elderly; Edinburgh UK
7. University of Oxford; Department of Psychiatry; Warneford Hospital Oxford UK OX3 7JX