Beneficial effects of green tea: A literature review

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855614/

Benefits of drinking green tea: The proof is in--drinking tea is healthy, says Harvard Women's Health Watch
http://www.health.harvard.edu/press_releases/benefit_of_drinking_green_tea

Green tea

https://umm.edu/health/medical/altmed/herb/green-tea
A University of Maryland Medical Center encyclopedic entry on green tea and its health benefits.

Tea and Cancer Prevention: Strengths and Limits of the Evidence

http://www.cancer.gov/about-cancer/causes-prevention/risk/diet/tea-fact-sheet