1. Rare blood donors: the past and the future;Woodfield;Vox Sang,2002
2. Rare blood. An ISBT Working Party report on rare blood donors;Anstee;International Society of Blood Transfusion. Vox Sang,1999
3. Management of pregnancies with rare blood types;Biale;Acta Obstet Gynecol Scand,1982
4. Patients with anti-Vel: immunohematological characterization and transfusion management;Lynen;Beitr Infusionsther,1990
5. A decade of rare donor services in the United States;Mallory;Report of the American Red Cross Rare Donor Registry (1981-90). Vox Sang,1992