abo blood groups |
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| navigate by keyword : abo anatomy anti antibodies antigen antigens background biology blood body care cell cells diagram donation donor education emergency generate group groups health hemoglobin human igm illustration immunological labeled laboratory medical microbiology plasma present recipient red rhesus scientific study system test transfusion type types vector |
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| ABO Blood groups. There are four basic blood types, made up from combinations of the type A and type B antigens. |
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