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