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For most lymphokine genes , a combination of phorbol esters ( phorbol 12-myristate 13 acetate , PMA ) and calcium ionophores ( A23187 ) is required for their maximal induction.
 DNA: lymphokine genes
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: lymphokine genes