I love this fic. Great concept, amazing characters, everything is good. My only issues are a few grammar mistakes, but I'm just really picky about those things. When I tried to re-read the chapters and find the mistakes, though, I didn't see them, so I can't exactly point them out... Guess I'll look again later. The medical stuff seems pretty accurate, but that comes from someone who has never had any interest in medical stuff. I can't think of anything that you could improve, really. I'm just going to say that this fic is focused around a very good subject that I haven't seen before and has a nice plot to keep things going (Unless the whole Domino thing was a sub-plot). Overall, applause to you and this wonderful story.
Please add me to the PM list. I really want to read more of this when you write it.