7818
Both DT and AA ' s cell sizes were enlarged by metolachlor exposure , but greater in DT ( 1 . 2 % per mg L ( - 1 ) ) than in AA ( 0 . 68 % per mg L ( - 1 ) ) .
 metolachlor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 metolachlor