1. From the University of Chicago (G.L.B.), Department of Medicine, Hypertensive Disease Unit, Chicago, Ill; Umea University Hospital (L.H.L.), Umea University, Department of Medicine, Umea, Sweden; New York University (H.R.B.), Department of Medicine, New York, NY; Monash University (H.K.), Department of Medicine, Melbourne, Victoria, Australia; Denver Health Medical Center (S.L.), Department of Medicine, Nephrology Division, Denver, Colo; Gilead Sciences, Inc (J.V.L., S.A., P.S.), Foster City, Calif;...