13986
FDK primary cultures ( atopic dermatitis , n = 11 ; non - atopic controls , n = 7 ) before and after interferon gamma ( IFN - gamma ) treatment were used for microarray analysis and quantitative RT - PCR .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None