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“Urban Green Spaces and Health – A Review of Evidence (2016).” World Health Organization, World Health Organization, https://www.euro.who.int/en/health-topics/environment-and-health/urban-health/publications/2016/urban-green-spaces-and-health-a-review-of-evidence-2016. 

“Access to Nature.” Greenest City Goal: Access to Nature | City of Vancouver, https://vancouver.ca/green-vancouver/access-to-nature.aspx.