Before clotting factors from recombinant DNA became available, less than half of hemophiliacs in the U.S. acquired HIV from injection of clotting factors obtained from blood samples.

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The Answer of Before clotting factors from recombinant DNA became available, less than half of hemophiliacs in the U.S. acquired HIV from injection of clotting factors obtained from blood samples.

Before Clotting Factors from Recombinant DNA Became Available, Less Than