765
Our results suggest that substances in serum influence steroid effects on these cells and that the molecular details of glucocorticoid hormone action may be pursued more precisely in a clearly defined culture medium.
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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:
 None