16859
Serum NO ( 2 ) concentrations in one of the diesel groups were significantly different from those in the control and biodiesel groups ( p < 0 . 01 and p < 0 . 05 , respectively ) .
 Chemical: NO ( 2 )
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: NO ( 2 )