Affiliation: | 1. Department of Laboratory Medicine and Pathology, Department of Biomedical Statistics & Informatics, Department of Anesthesiology, Division of Transfusion Medicine, Mayo Clinic, , Rochester, Minnesota;2. Westat, Inc., , Rockville, Maryland;3. One Lambda, Inc., , California;4. Deparment of Laboratory Medicine, University of California at San Francisco, Blood Systems Research Institute, , San Francisco, California |