9940
These results suggest that members of the ATF family are involved in mediating the transcriptional regulation of the KGF gene in response to extracellular stimuli via a novel CRE regulatory element .
 ATF family, KGF gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ATF family, KGF gene