1889
This signature was evaluated in a separate study using six chemicals that are either local lymph node ( LLNA ) false - positive or false - negative chemicals in addition to nine sensitizers and four non - sensitizers .
 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