| Affiliation: | 1. Division of Anesthesiology and Pain Medicine, Division of Laboratory Medicine, Children's National Medical Center;2. Department of Anesthesiology and Pediatrics, Department of Pediatrics and Pathology, George Washington University School of Medicine and Health Sciences, , Washington, DC;3. Transfusion Medicine Division, Department of Pathology, Department of Anesthesiology and Critical Care Medicine, Department of Pediatrics, Johns Hopkins University School of Medicine;4. Clinical Liaison for Library Services, Welch Medical Library, Johns Hopkins University, , Baltimore, Maryland |
