The Ontario Health Study is one of the largest long-term health studies in Canada. Since 2010 over 230,000 Ontarians have taken a short online survey to help researchers better understand the causes of chronic diseases like cancer, heart disease and diabetes, and to develop new ways to prevent and treat them. If you live in Ontario and you're 18 years or older, you're eligible to participate. A small investment of your time today will help to improve public health for generations to come. Find out more...
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