1. Imperial Clinical Trials Unit, School of Public Health, Imperial College London , 68 Wood Lane, London W12 7RH , UK
2. Dobney Hypertension Centre, Medical School, Royal Perth Hospital Unit, University of Western Australia , Perth , Australia
3. School of Population Health, University of New South Wales, The George Institute for Global Health , Sydney , Australia
4. Third Department of Medicine, School of Medicine, Sotiria Hospital, Hypertension Center STRIDE-7, National and Kapodistrian University of Athens , Athens , Greece
5. Khanda Ltd , 85 Great Portland Street, London W1W 7LT , UK
6. Department of Primary Care and Public Health, Imperial College London , 90 Wood Lane, London W12 0BZ , UK