1285
An insulin tolerance test ( ITT ) was performed at the end of the second week of treatment and at the end of the 6-week washout period with no statistically significant change in cortisol response.
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 None