Can someone with the O positive blood group donate blood to someone with the B positive blood group? - Quora

What are the different human blood groups and types? - Quora

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Why can't I donate B+ group blood to any other groups? - Quora

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O negative blood can be donated to any blood group person.Is it

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Can a person with blood group O+VE donate blood to a person having

Can an O positive blood type person donate blood once for any

Can someone with the O positive blood group donate blood to

Can an O positive blood type person donate blood once for any

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Can parents who are both of blood type O give birth to children