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1984 - First animal to human transplant
Born with hypoplastic left heart syndrome, Stephanie Fae Beauclair, known as Baby Fae, undergoes surgery to replace her heart with that of a baboon's. It is the first example of xenotransplantation and was deemed a success, despite Baby Fae dying only 21 days later. To this day the event is considered one of the most controversial and important cases in medical ethics.
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