1. Laboratory of Biochemistry and Vascular Biology, Division of Blood Components and DevicesCenter of Biologics Evaluation and Research (CBER), FDA Silver Spring Maryland USA
2. Division of Viral ProductsCenter of Biologics Evaluation and Research (CBER), FDA Silver Spring Maryland USA
3. Department of PathologyCenter for Blood Oxygen Transport Baltimore Maryland USA
4. Center for Blood Oxygen Transport and HemostasisDepartment of Pediatrics, University of Maryland Baltimore School of Medicine Baltimore Maryland USA