16644
In a previous study , our research group demonstrated an absence of CUB - mediated mutagenic effects through the wing Somatic Mutation and Recombination Test ( SMART ) in Drosophila .
 CUB
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 CUB