†From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, the clinical Pharmacology Unit, Department of Medicine and Therapeutics, Foresterhill, Aberdeen

‡From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, Department of Cardiovascular Medicine, Queen Elizabeth Hospital, Birmingham

§From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, The Royal Postgraduate Medical School, Institute of Obstetrics and Gynaecology, Queen Charlotte Hospital for Women, London

¶From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, Department of Medicine, Western General Hospital, Edinburgh

††From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, lmperial Cancer Research Fund, London

‡‡From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, Department of Public Health Sciences, St George's Hospital Medical School, London

§§From the Blood Pressure Unit, Beaumont Hospital, Dublin, Ireland, National Heart and Lung Institute, London, UK

*Members of the British Hypertension Society Working Party on Blood Pressure Measurement.