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Lewis antigen system
Lewis antigen system is a human blood group system based upon genes on chromosome 19. There are two types of Lewis antigens, Lewis a and Lewis b. They are the only red cell antigens which are not produced by the erythrocyte itself. Instead, it is a component of body secretions, and is subsequently adsorbed onto the surface of the erythrocyte.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Lewis_antigen_system". A list of authors is available in Wikipedia.|