Affiliation: | 1. Department of Medicine, Division of Hematology and Medical Oncology, Mayo Clinic, Phoenix, AZ;2. Department of Surgery, Division of Cardiovascular and Thoracic Surgery, Mayo Clinic, Scottsdale, AZ;3. Department of Research Biostatics, Mayo Clinic, Scottsdale, AZ;4. Department of Medicine, Division of Hematology and Medical Oncology, Mayo Clinic, Rochester, MN |