14978
Cell-specific expression of helix-loop-helix transcription factors encoded by the E2A gene .
 E2A gene, helix-loop-helix transcription factors
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 E2A gene, helix-loop-helix transcription factors