It's not like human blood -- which when you need it you NEED it -- is
always available and safe (donations are down and even with HIV and
hepatitis testing, you might get a contaminated unit).
Up until I couldn't, I donated as soon as soon as I was able (and I
often got a call if I delayed). Right now I'm taking too many drugs
for hypertension to be acceptable, but I'm working on correcting that
problem. I hope those of you who don't care to be guinea pigs for
artificial blood are giving your own if you can.
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