If you are in need of additional general information about CRPS, Mayo Clinic can be a great help! https://tinyurl.com/27hwh78b
Dr. Hooshmand’s RSD (now called CRPS) puzzles can help answer many questions you might have. https://www.rsdrx.com/
National Organization for Rare Disorders advocates and funds research, education, and networking among service providers.
The NIH provides information from the government and is in charge of biomedical and public health research