1 Department of Urology, UCLA David Geffen School of Medicine, Los Angeles, CA.
2 Department of Radiology, UCLA David Geffen School of Medicine, Los Angeles, CA.
3 Division of Transplant Nephrology, Department of Medicine, UCLA Kidney and Pancreas Transplantation Program, UCLA David Geffen School of Medicine, Los Angeles, CA.
4 Department of Urology, UCLA Kidney and Pancreas Transplantation Program, UCLA David Geffen School of Medicine, Los Angeles, CA. Electronic address: NNassiri@mednet.ucla.edu.