Transfusion Chain

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In living donation, the following blood types are compatible: - Blood type `A` donors can donate to recipients with blood types `A` and `AB`. - Blood type `B` donors can donate to recipients with blood types `B` and `AB`. - Blood type `AB` donors can donate to recipients with blood type `AB` only. - Blood type `O` donors can donate to recipients with blood types `A`, `B`, `AB` and `O`. There are

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