1. Department Hematology and Oncology, Cleveland Clinic Foundation , Cleveland, Ohio 44195 , USA
2. Department of Endocrinology, Diabetes, and Metabolism, Pikeville Medical Center , Pikeville, Kentucky 41501 , USA
3. Department of Endocrinology, Diabetes, and Metabolism, Medical College of Georgia, Augusta University , Augusta, Georgia 30912 , USA
4. Department of Biomedical Sciences, Rocky Vista University , Parker, Colorado 80112 , USA
5. Department of Nephrology, Pikeville Medical Center , Pikeville, Kentucky 41501 , USA
6. Division of Endocrinology, Diabetes and Metabolism, Virginia Commonwealth University , Richmond, Virginia 23298 , USA
7. Department of Endocrinology and Diabetes, University of Arkansas for Medical Sciences , Little Rock, Arkansas 72205 , USA
8. Department of Endocrinology, Diabetes and Metabolism, Institute of Endocrinology and Metabolism, Cleveland Clinic , Cleveland, Ohio 44195 , USA