Sorry if I got it wrong but it sounded as if you didn't believe the paper existed. I used it because the figure actually exceeded the 50% I had come to believe from the hundreds of posts I had read about it and why I said that many of those still felt they were better off even though it had spread. I have got so many links documtents and sites I have visited that it was impossible to keep everyone and I have no idea how many were involved.I have attached the 3 documents I talked about.
Dutch Guidelines also say that Amputation can be considered. This group is the most advanced and organised in the World. It is 5 university hospitals and 2 drug companies working together. There are 2 verisons of this, one for doctors one for patients. http://pdver.atcomputing.nl/english.html
The 2nd was publish by the American Pain Society http://www.thblack.com/links/RSD/JPa...2_CRPSname.pdf
The third, http://www.rsds.org/1/publications/r...pring2008.html I don't know how accurate the 7 - 8% is but I am one of them as the attached picture shows

From PA as well
 

I have family that lives in Butler, PA and I would highly suggest traveling into town. I haven't personally been to any there b/c I live in NC now, but there seem to be some great ones. Good luck!