http://www.timesonline.co.uk/tol/news/uk/health/article1599757.ece

“Blood conversion breakthrough could be life-saver for thousands”

“A life-saving method of converting blood from one group to another has been pioneered by scientists. The breakthrough could potentially mean the end of blood-donor shortages and boost supplies of sought-after group O negative blood.”

This could be a very important breakthrough – worth following. The article also gives quite a clear explanation of the ABO blood groups.

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