1. Division of nephrology, Southern California Permanente Medical Group Kaiser Permanente Fontana Medical Center Fontana, California, USA
2. Department of Radiology, Southern California Permanente Medical Group Kaiser Permanente Fontana Medical Center Fontana, California, USA
3. Department of nuclear Medicine, Southern California Permanente Medical Group Kaiser Permanente Fontana Medical Center Fontana, California, USA
4. Department of Surgery, Southern California Permanente Medical Group Kaiser Permanente Fontana Medical Center Fontana, California, USA