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What happens when you donate blood? Greg Foot explains how a blood donation actually works and what happens after you've donated. Do you know what your blood type is?
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Footnotes:
[1]
[2]
[3]
[4]
[5]
[6]
[7] and
[8]
[9] and
[10]
[11] and
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
Subscribe for more awesome science -
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