1. School of Health, Wellbeing and Social Care, Faculty of Wellbeing, Education and Language Studies, The Open University , Walton Hall, Kents Hill, Milton Keynes MK7 6AA , UK
2. School of Human and Health Sciences, University of Huddersfield , Queensgate, Huddersfield HD1 3DH , UK
3. Department of Cardiology, Chesterman Wing, Northern General Hospital, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield S5 7AU , UK
4. Department of Cardiology, University of Ottawa Heart Institute , 40 Ruskin Street, Ottawa, Ontario K1Y 4W7 , Canada
5. The Library and Knowledge Service, Calderdale Royal Hospital, Calderdale and Huddersfield NHS Foundation Trust , Halifax HX3 0PW , UK