1. Imperial Clinical Trials Unit, Imperial College London, Stadium House, 68 Wood Lane, London, UK
2. Dipartimento Cardio-Toraco-Vascolare, Università di Bologna, S.Orsola-Malpighi University Hospital, Via Albertioni 15, Bologna, Italy
3. Section of Cardiology, Department of Internal Medicine, Manila Doctors Hospital, 667 United Nations Ave., Ermita, Manila, Philippines
4. Federation University Australia, School of Health and Life Sciences, University Drive, Mt Helen, Victoria, Australia
5. Arterial Hypertension and Metabolic Unit, Hospital Universitario, Fundación Favaloro, Belgrano 1782, P:4, CABA, Argentina
6. Dobney Hypertension Centre, School of Medicine – Royal Perth Hospital Unit, The University of Western Australia, Level 3, MRF Building, Rear 50 Murray St, Perth WA, Australia
7. Hypertension in Africa Research Team (HART), MRC Unit for Hypertension and Cardiovascular Disease, North-West University, Hoffman Street, Potchefstroom 2520, South Africa
8. School of Medicine, Hypertension Center STRIDE-7 National and Kapodistrian University of Athens Third Department of Medicine, Sotiria Hospital, Athens, Greece
9. CARIM – School for Cardiovascular Diseases, Maastricht University, PO Box 616, 6200 Maastricht, the Netherlands
10. Boston University School of Medicine, Department of Pharmacology & Experimental Therapeutics and The Whitaker Cardiovascular Institute, 72 East Concord St, Boston, MA, USA
11. Department of Primary Care and Public Health, Imperial College London, St Dunstan's Road, London, UK