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about 7 years ago
A4, but we have in the same time the Rh/ positive and negative
about 7 years ago
A B AB. O+ O - I know there are more defined..but when discussing with patients..they understand what types are given out at blood drives when they donate...Thats the five they will have posted when people donate...there are only 4 basic blood groups...but since O neg...is sought after they now have it listed individually
