"Therefore, the new definition of death was not merely the result of a discussion between scientists; above all, it was the first shared bioethical statement to have a tangible impact worldwide. Indeed, brain death formed the basis for the development of transplant medicine as we know it today; it enabled organ donation and harvesting from donors whose hearts were still beating. And it is thanks to that work that, today, tens of thousands of organ transplants are performed worldwide each year, and that, thanks to this treatment, countless patients who would otherwise be facing certain death are saved. Therefore, the definition of death is based on scientific certainties that there is no reason to question. Moreover, it is clear that if a doctor had the slightest doubt about a person's death, they would never proceed with organ harvesting."
January 1, 1970
https://en.wikiquote.org/wiki/Ignazio_Marino