Kevin...we are tap dancing among words here. In some thinking the words 'a human being' makes no sense unless the 'foetus' is capable of living on its own.....while others 'believe' that a 4 celled organism is 'human': that somehow a 'soul' enters it at conception.

No matter what one's subjective definition, the issue is always 'who has the authority to decide between alternatives when there are problems?'
I see clear arguments from various viewpoints, but I will NEVER see why a legislative body OR a court should have the authority to decide ahead of time what medical decisions should be made.