20032
Within the preclinical assessment of these molecules , the cis - imidazoline analogue Nutlin - 3 has definitely attracted great interest for its in vitro and in vivo antitumor activity in several pediatric cancer models , either as single agent on in combination with standard chemotherapy .
 cis - imidazoline, Nutlin - 3
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 cis - imidazoline, Nutlin - 3