Affiliation: | 1. Department of Pathology. St. Luke's‐Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York;2. Department of Medicine. St. Luke's‐Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York;3. Department of Hematology, Beth Israel Medical Center, New York;4. Department of Hematology and Transfusion Medicine, Beth Israel Medical Center, New York |