Actually, they do not. It's not part of the Hippocratic Oath. They removed the abortion part too, y'know.
Do they at least learn the classical version at school and leave the modern one for the professional oath?
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The interpreted AD 275 fragment of the oath contains a prohibition of abortion that is in contradiction to original Hippocratic text On the Nature of the Child, which contains a description of an abortion, without any implication that it was morally wrong,[16] and descriptions of abortifacient medications are numerous in the ancient medical literature.[17] The oath's stance on abortion was unclear even in the ancient world where physicians debated whether the specification of pessaries was a ban on simply pessaries, or a blanket ban on all abortion methods.
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