1. Medicines Monitoring Unit & Hypertension Research Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee DD2 1GZ, UK
2. Faculty of Medicine, School of Public Health, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
3. Robertson Centre for Biostatistics, University of Glasgow, Boyd Orr Building, Glasgow G12 8QQ, UK
4. Institute of Cardiovascular Sciences, University College London, Maple House, 149 Tottenham Court Road, London W1T 7DN, UK
5. Centre of Clinical Pharmacology, Queen Mary University of London, Mile End Road, London E1 4NS, UK
6. Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 4HN, UK
7. Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh BioQuarter, 47 Little France Crescent, Edinburgh EH16 4TJ, UK