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.