Q&A column, 2/15

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1. O’Donnell J, Laffan MA. The relationship between ABO histo-blood group, factor VIII and von Willebrand factor. Transfus Med. 2001;11:343–351.
2. Matsui T, Titani K, Mizuochi T. Structures of the asparagine-linked oligosaccharide chains of human von Willebrand factor. Occurrence of blood group A, B, and H(O) structures. J Biol Chem. 1992;267:8723–8731.
3. Jenkins PV, O’Donnell JS. ABO blood group determines plasma von Willebrand factor levels: a biologic function after all? Transfusion. 2006;46:1836–1844.
4. Bowen DJ. An influence of ABO blood group on the rate of proteolysis of von Willebrand factor by ADAMTS13. J Thromb Haemost. 2003;1:33–40.
5. Gallinaro L, Cattini MG, Sztukowska M, et al. A shorter von Willebrand factor survival in O blood group subjects explains how ABO determinants influence plasma von Willebrand factor. Blood. 2008;111:3540–3545.
6. Downes KA, Wilson E, Yomtovian R, Sarode R. Serial measurement of clotting factors in thawed plasma stored for 5 days [letter]. Transfusion. 2001;41:570.
7. AABB. Circular of information for the use of human blood and blood components. Bethesda, Md.: AABB; 2013.

Jeffrey Lawrence Winters, MD
Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine
Rochester, Minn.
Member, CAP Transfusion Medicine
Resource Committee

Evelyn Lockhart, MD
Associate Medical Director
University of New Mexico Transfusion Service
Associate Professor, Department of Pathology
University of New Mexico, Albuquerque
Member, CAP Transfusion Medicine
Resource Committee

Nicole Dodge Zantek, MD, PhD
Medical Director, Special Coagulation Laboratory Division of Transfusion Medicine, Department of Laboratory Medicine and Pathology
University of Minnesota, Minneapolis
Liaison, CAP Transfusion Medicine
Resource Committee