Start with 2 books. Get a college level text for anatomy and physiology. Also get Death Touch The Science behind the Legend of Dim-Mak by Michael Kelly, D.O. with forward by Erle Montaigue Paladin Press Boulder Colorado (c) 2001.
Then, for web site, try Master Pantazi's site Kyusho.com. You can ask whatever medical questions you want on the general forum. Master Pantazi is doing research.
If you want, you can come down to Mexico Cd. Juarez when we go again to the medical college there. This year, we got to see the anatomy and pressure points of the arm on a cadaver. Next year, they are doing the head dissection for us.
Of course, there is also a whole conference on Kyusho for the same weekend. The cadaver study is just part of it. Everything is translated into English and Spanish.
The older I get, the better I was!