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Blood Groups and Rh Factor
Blood Groups and Rh Factor
Rh positive or Rh negative based on the protein present on the Red blood cells. You can know your blood group with a simple blood test and it is very important to be aware of your blood type.

Rh positive or Rh negative based on the protein present on the Red blood cells. You can know your blood group with a simple blood test and it is very important to be aware of your blood type.