You’re deliberately confusing the issue.
The cord blood is prized for the stem cells which are used (for example) for Leukemia patients.
The issues there are finding a good enough match (even though you don’t need as stringent a match to the patient with cord blood cells as with adult marrow cells); low total volume of cells; and defraying of keeping the cord cells at liquid nitrogen temperature until there is a match...and of older lots didn’t have typing done to the same level of detail as is now available; course, due to small sample size (see above), it’s just not worth it to take another sample from the same donation of cord blood and do a more thorough test.
“ You’re deliberately confusing the issue.”
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You posted the fake pic that was posted by some dude on the internet, not me.
I’m not at all confused.