Department of Medicine, University of Washington. Bloodworks Northwest, Seattle, Washington. Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota. Department of Pathology, University of Iowa Hospital, Iowa City, Iowa. LifeSource/ITxM, Chicago, Illinois. Department of Pathology, Division of Transfusion Medicine, Johns Hopkins Hospital, Baltimore, Maryland. New England Research Institutes, Watertown, Massachusetts. Corrona LLC, Waltham, Massachusetts. New England Research Institutes, Watertown, Massachusetts.