Mukta Panda1, Kevin E O'Brien2, Margaret C Lo3. 1. University of Tennessee College of Medicine at Chattanooga, Department of Internal Medicine. Electronic address: mpanda@uthsc.edu. 2. University of South Florida Morsani College of Medicine, Department of Medicine, Division of General Internal Medicine, Tampa. 3. University of Florida College of Medicine, Department of Medicine, Division of Internal Medicine, Gainesville.