University of Glasgow, University of Glasgow, University of Glasgow, Glasgow Caledonian University, University of Glasgow - School of Cardiovascular and Metabolic Health, MGH Institute of Health Professions, NHS Lanarkshire, Government of the United Kingdom - NHS Greater Glasgow and Clyde, University of Glasgow - School of Cardiovascular and Metabolic Health, Royal Alexandra Hospital, University of Glasgow, Glasgow Caledonian University, University of Glasgow, Government of the United Kingdom - NHS Greater Glasgow and Clyde, University of Glasgow - Robertson Institute of Biostatistics and Clinical Trials Unit and University of Glasgow - School of Cardiovascular and Metabolic Health