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Human blood group systemsThe International Society of Blood Transfusion (ISBT) currently recognises 29 major blood group systems (including the ABO and Rh systems).[1] Thus, in addition to the ABO antigens and Rhesus antigens, many other antigens are expressed on the red blood cell surface membrane. For example, an individual can be AB RhD positive, and at the same time M and N positive (MNS system), K positive (Kell system) and Lea or Leb positive (Lewis system). Many of the blood group systems were named after the patients in whom the corresponding antibodies were initially encountered. Additional recommended knowledgeThe ISBT definition of a major blood group system is where one or more antigens are "controlled at a single gene locus or by two or more very closely linked homologous genes with little or no observable recombination between them". [2] Table
Notes
Categories: Blood | Transfusion medicine | Hematology |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Human_blood_group_systems". A list of authors is available in Wikipedia. |