| Affiliation: | 1. Department of Laboratory Medicine, University of California at San Francisco, San Francisco, California;2. Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, California;3. Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota;4. Blood Systems Research Institute, San Francisco, California;5. Division of Transfusion Medicine, Mayo Clinic, Rochester, Minnesota;6. Department of Anesthesia and Perioperative Care, University of California at San Francisco, San Francisco, California;7. Department of Medicine, University of California at San Francisco, San Francisco, California;8. Department of Anesthesia, Mayo Clinic, Rochester, Minnesota;9. Blood Centers of the Pacific, San Francisco, California;10. American Red Cross Neutrophil Reference Laboratory, North Central Blood Services, St Paul, Minnesota |
