From the University/British Heart Foundation Centre of Research Excellence, Centre of Cardiovascular Science, University of Edinburgh, Queen's Medical Research Institute (T.E.F., A.A., P.J.G., R.K., E.C., J.W.D., N.L.M., D.J.W., N.D.).
Department of Renal Medicine, Royal Infirmary of Edinburgh (T.E.F., P.J.G., N.D.).