Proc Soc Exp Biol Med. 1999 Apr; 220(4): 210-2.

Preclinical efficacy studies of green and black tea extracts.

Steele VE, Bagheri D, Balentine DA, Boone CW, Mehta R, Morse MA, Sharma S, Sigman CC, Stoner GD, Wargovich MJ, Weisburger JH, Zhu S, Kelloff GJ.

Chemoprevention Branch, National Cancer Institute, Bethesda, Maryland 20892, USA.