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Welcome to OPWSA.com

The Ontario Prader-Willi Syndrome Association (OPWSA) is a non-profit, charity which was established in 1982. Our mission is to enhance the quality of life for individuals with Prader-Willi Syndrome.

OPWSA has a membership of 1000, including individuals with PWS, their families and interested professionals.

This website was created to be a source of information for those interested in and affected by Prader-Willi Syndrome.

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