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Modulation of normal erythroid differentiation by the endogenous thyroid hormone and retinoic acid receptors : a possible target for v-erbA oncogene action .
 DNA: v-erbA oncogene; protein: retinoic acid receptors
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: v-erbA oncogene; protein: retinoic acid receptors