From Francis Canavan’s The Pluralist Game:
If we take the principles of liberal individualism as axiomatic, we find it possible to think of the fetus and the woman as the parties of the first and second part arguing over their respective rights. We are then able to blind ourselves to the natural fact that they are related as mother and child and that the child is in the only natural place for him to be, his mother’s womb (italics added).