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In the apoptotic assay , the combination of PD and EGCG significantly increased the percentage of apoptotic cells compared with PD alone ( p < 0 . 01 ) .
 Chemical: EGCG
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: EGCG