1. Division of Nephrology, Bone & Mineral Metabolism, Department of Internal Medicine University of Kentucky Lexington KY USA
2. Division of Biomedical Informatics, Department of Internal Medicine University of Kentucky Lexington KY USA
3. Department of Computer Science University of Kentucky Lexington KY USA
4. F. Joseph Halcomb III, MD Department of Biomedical Engineering University of Kentucky Lexington KY USA