10741
This effect was associated with activation of cells with progenitor features in noncancerous liver tissue , including markers of replicative senescence ( p16 ) , oncofetal transformation ( Afp , H19 , and Bex1 ) , and increased " stemness " ( Prom1 and Epcam ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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