1516
IDI values showed a similar pattern 13 ( +/- 2 ) , 16 ( +/- 6 ) , 19 ( +/- 3 ) , and 18 ( +/- 5 ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None