TY - JOUR AU - Xu, J Z; Yeung, S YV; Chang, Q; Huang, Y; Chen, Z Y TI - Comparison of antioxidant activity and bioavailability of tea epicatechins with their epimers JO - Br J Nutr VL - 91 PY - 2004 DO - 10.1079/BJN20041132 SP - 873 EP - 881 ER -