I don't know. The number was in my head that a processed blood sample can last 3 months. entirely possible that it doesn't.
" After processing, red cells can be stored for up to 42 days; plasma is frozen and can be stored for up to 12 months;" http://www.donateblood.com.au/faq/about-blood/how-long-until-my-blood-used
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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