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Effect of COCTF and PCTF on the proliferation of ARPE-19 cells. Values were expressed as means ± SD. *Significant different as compared with control for catechin, oligomeric-PA containing fraction (p < 0.05). #Significant different as compared with control for polymeric-PA containing fraction (p < 0.05). *Significant difference between two fractions (p < 0.05).
