1 Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA, USA;; Department of Nephrology, Rabin Medical Center, Petah-Tikva, Israel.
2 Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University of California Irvine Medical Center, Orange, CA, USA;; Veterans Affairs Long Beach Healthcare System, Long Beach, CA, USA;; Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA;; Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, CA, USA.