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Erythropoietin stimulates transcription of the TAL1/SCL gene and phosphorylation of its protein products .
 TAL1/SCL gene, Erythropoietin, protein products
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:
 TAL1/SCL gene, Erythropoietin, protein products