Blood type distribution by country in EuropeExplore further
2021-12-9u2002·u2002The ABO blood group system is the most important blood type classification system for humans. ... the labels O, A, B, and AB indicate whether the antigens A and B are present on the red . The ABO blood group system is the most important blood type classification system for humans. ... is A. The following map shows the distribution of the O, A ...
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