21008
Model parameters were estimated using E2 concentrations for 0 , 0 . 5 , and 3 micro g / l FAD exposure concentrations , and good fits to these data were obtained .
 Chemical: FAD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: FAD