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The stimulation of viral production from this cell line occurs only if these cells are treated with granulocyte/macrophage colony-stimulating factor ( GM-CSF ) before treatment with LPS .
 protein: GM-CSF; protein: granulocyte/macrophage colony-stimulating factor
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:
 protein: GM-CSF; protein: granulocyte/macrophage colony-stimulating factor