[1] Univ Calif Irvine, Amer Heart Assoc Comprehens Hypertens Ctr, Div Nephrol Hypertens & Kidney Transplantat, Med Ctr,Dept Med,Sch Med, Orange, CA 92617 USA
[2] Vet Affairs Long Beach Healthcare Syst, Dept Med, Nephrol Sect, Long Beach, CA 90822 USA
[3] Oakland Univ, William Beaumont Hosp, Multiorgan Transplant Ctr,William Beaumont Sch Med, Dept Internal Med,Sect Nephrol, Royal Oak, MI 48309 USA
[4] Univ Hosp Parma, Dipartimento Med & Chirurg, Parma, Italy