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Understanding different blood types: A, B, AB, and O
There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is ...
See more of our coverage in your search results. Add The New York Post on Google Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold ...
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