1. British Heart Foundation Glasgow Cardiovascular Research Centre Institute of Cardiovascular and Medical Sciences University of Glasgow United Kingdom
2. The Queen Elizabeth Hospital Discipline of Medicine University of Adelaide Central Adelaide Local Health Network Coronary Vasomotion Disorders International Study Group (COVADIS) Adelaide Australia
3. Department of Neurology St George's University Hospitals NHS Foundation Trust London United Kingdom
4. Faculty of Medicine UNSW University of New South Wales Sydney NSW Australia
5. Department of Cardiology St George's University Hospitals NHS Foundation Trust London United Kingdom
6. Molecular and Clinical Sciences Research Institute St Georges University of London United Kingdom