Resources
- The website of the Prader Willi Syndrome Association Ireland (PWSAI)
http://www.pwsai.ie/ - The Prader-Willi Syndrome Association, Uk
http://pwsa.co.uk/ - Prader-Willi Syndrome Association, US
http://www.pwsausa.org/ - Prader-Willi Alliance of New York
http://www.prader-willi.org/