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Hypertension 2003 Jul 27;42(1):19-24. Epub 2003 May 27.
Department of Diabetes, Endocrinology, and Internal Medicine, King's College, 5th Floor, Thomas Guy House, Guy's Hospital, London SE1 9RT, UK.
Nephrol Dial Transplant 2002 Jan;17(1):169-70
Department of Renal Medicine, Leeds General Infirmary, Leeds, UK.