Key Citations: 1. Bowler DE, Buyung-Ali LM, Knight TM, Pullin AS. (2010) A systematic review of evidence for the added benefits to health of exposure to natural environments. BMC Public Health. 2010 Aug 4;10:456. Available at: http://www.ncbi.nlm.nih.gov/pubmed/20684754.
2. Grant RH, Heisler GM, Gao W. (2002) Estimation of pedestrian level UV exposure under trees. Photochem Photobiol. 2002 Apr; 75(4):369-76. Available at: http://www.ncbi.nlm.nih.gov/pubmed/12003126.
3. Kuo FE, Taylor AF. (2004) A potential natural treatment for attention-deficit/hyperactivity disorder: evidence from a national study. Am J Public Health. 2004 Sep ;94(9):1580-6. Available at: http://www.niu.edu/~carter/courses/526/articles/Kuo_and_Taylor.pdf.
4. TPL (2013). Economic and Health Benefits. Trust for Public Land. Accessed April 2013. Available at: Effects of Parks on Health: http://www.tpl.org/research/parks/economic-health-benefits.html.