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Americans with O+ and A+ blood types account for over 2/3rds of the population. The other 6 blood types make up the other 1/3rd. It requires a lot of work to make sure that hospitals have the necessary blood types to treat trauma victims.
Americans with O+ and A+ blood types account for over 2/3rds of the population. The other 6 blood types make up the other 1/3rd. It requires a lot of work to make sure that hospitals have the necessary blood types to treat trauma victims.