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Is There a National Blood Donation Organization? - blood donation organizations

Hello, I try to see whether it has a national organization, blood donation. But I will not give the organization, the blood, just donated, I'm looking for the organization platelets, plasma, red blood cells, granulocytes, etc.

To donate bone marrow, for example, is the national center is marrow.org. I wonder whether there is a large national site for the blood, which then branches into the local blood bank or something?

Thanks for suggestions that you would be very grateful to the organization.