double blind invasive surgery?

So all talks of this miracle aside, is it customary of Western countries to demand double blind testing for most invasive surgeries of this kind? I personally have no problem with using aborted foetuses for regenerative therabpy. I just think it's funny that desperate pro life people with a little case of the NIMBY's go to China for this kind of therapy. 'They need to trim there population 'over here'' Like America is more of a real country. Whatever!