It's from pre-Internet era so there's no real "correct" version, it spread by word of mouth.

The more elaborate version includes the father being killed, an ambulance, immediate surgery to play on your (rightful) bias that an emergency surgeon is a man.

It doesn't have "not his father" and is carefully written to avoid pronouns to avoid putting you on that it's about gender.

Of course being operated on in the emergency room by a woman should be unthinkable - who tf would want that.