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At the end of this incubation the resting cells were stimulated with M-CSF , and RNA was isolated for analysis by Northern blotting .
 RNA: RNA; protein: M-CSF; cell type: resting cells
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:
 RNA: RNA; protein: M-CSF; cell type: resting cells