1. Departments of Medicine, Pharmacology, and Pathology, Renal Research Institute, New York Medical College, Valhalla, New York;
2. Department of Internal Medicine, Yonsei University Medical College, Seoul, Korea;
3. Department of Vegetative Anatomy, Humboldt University Medical School, Berlin, Germany; and
4. Departments of Stem Cell Biology and Regenerative Medicine, Cancer Biology, and Medical Oncology and Jefferson Stem Cell Biology and Regenerative Medicine Center, Kimmel Cancer Center, Thomas Jefferson University Medical School, Philadelphia, Pennsylvania