1. Department of Geriatric Medicine; Oslo University Hospital; Oslo Norway
2. Faculty of Medicine, Institute of Clinical Medicine; University of Oslo; Oslo Norway
3. Stroke Medicine; University of Nottingham; Nottingham UK
4. Department of Medicine, Faculty of Medicine; Universiti Kebangsaan Malaysia Medical Centre; Kuala Lumpur Malaysia
5. The George Institute for Global Health; Faculty of Medicine, UNSW; Sydney Australia
6. The George Institute for Global Health; Beijing China
7. Department of Neurology; Shanghai East Hospital, School of Medicine, Tongji University; Shanghai China
8. Klinikum Frankfurt Höchst; Frankfurt Germany
9. Department of Neurology; Heidelberg University Hospital; Heidelberg Germany
10. Department of Clinical Haematology; Oxford University Hospitals NHS Foundation Trust; Oxford UK
11. Department of Neurology; Oslo University Hospital Ullevål; Oslo Norway
12. The Norwegian Air Ambulance Foundation; Oslo Norway
13. Centre for Clinical Brain Sciences; University of Edinburgh; Edinburgh UK