1. Centre for Heart, Lung and Vascular Health School of Health and Exercise Sciences University of British Columbia Okanagan Kelowna BC Canada
2. Department of Anesthesiology Pharmacology and Therapeutics Vancouver General Hospital University of British Columbia Vancouver BC Canada
3. Department of Cellular and Physiological Sciences University of British Columbia Vancouver BC Canada
4. Cerebral Haemodynamics in Ageing and Stroke Medicine (CHIASM) Research Group Leicester Biomedical Research Centre University of Leicester Leicester UK