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Semin Thromb Hemost 2007; 33(3): 220-225
DOI: 10.1055/s-2007-971207
Copyright © 2007 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

External Quality Assurance in Thrombosis and Hemostasis: An International Perspective

John D. Olson1 , F. Eric Preston2 , William L. Nichols3
  • 1Department of Pathology, University of Texas Health Science Center, San Antonio, Texas
  • 2University of Sheffield, Sheffield, United Kingdom
  • 3Divisions of Hematology and Internal Medicine, and Hematopathology and Laboratory Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota