Fiction by Michael Crichton.
This was Crichton's first novel, written way back in 1968. It's a straight medical thriller with a bit of a political argument thrown in-- a pro-abortion one, interestingly enough. They had those back before Roe vs Wade. It's funny to almost to hear that side argued with the same half-desperate I-know-I'm-morally-right-but-the-establishment-will never-get-it air that the pro-life movement seems to have now.
All told, it's an interesting period piece, and not a bad mystery.