The major human blood type system which depends on the presence or absence of two antigens A and B. Type O occurs when neither A nor B is present and AB when both are present. A and B are genetic factors that determine the presence of enzymes for the synthesis of certain glycoproteins mainly in the red cell membrane.
    

concept

The determination of the ABO and Rh (D) blood groups for transfusion.

Ludwik Hirszfeld : the story of one life / translated and edited by Marta A. Balińska ; edited by William H. Schneider.

What is the biologic factor in primary sterility? / by William Seaman Bainbridge, Sc.D., M.D., C.M. New York City.

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ABO Blood-Group System

Catalogue

The determination of the ABO and Rh (D) blood groups for transfusion.

Ludwik Hirszfeld : the story of one life / translated and edited by Marta A. Balińska ; edited by William H. Schneider.

What is the biologic factor in primary sterility? / by William Seaman Bainbridge, Sc.D., M.D., C.M. New York City.