1. Division of General Internal Medicine, Department of Internal Medicine Mayo Clinic Rochester Minnesota USA
2. Division of Biomedical Statistics and Informatics, Department of Health Sciences Research Mayo Clinic Rochester Minnesota USA
3. Division of Hematology, Department of Internal Medicine Mayo Clinic Rochester Minnesota USA
4. Division of Hematopathology, Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
5. Division of Epidemiology, Department of Health Sciences Research Mayo Clinic Rochester Minnesota USA