Department of Pathology and Laboratory Medicine,
MedStar Georgetown University Hospital
Washington, DC, United States
S.G. Sandler
Georgetown University School of Medicine
Transfusion Service
Department of Laboratory Medicine,
MedStar Georgetown University Hospital
Washington, DC, United States
W.A. Flegel
Laboratory Services Section
Department of Transfusion Medicine,
NIH Clinical Center
Georgetown University School of Medicine
Bethesda, MD,Washington, DC, United States