http://www.energyarts.com/store/products/books/tai-chi-health-life-book
http://www.health.harvard.edu/newsletters/Harvard_Womens_Health_Watch/2009/May/The-health-benefits-of-tai-chi
http://www.mayoclinic.com/health/tai-chi/SA00087
http://worldtaichiday.org/WTCQDHlthBenft.html
www.coloradointernalarts.com
www.nitrographics.biz