26586
Both clinical markers and biomarkers of response to either anti - TNF or different mode of action biological agents , and of successful discontinuation of these agents once the treatment goal has been achieved , have been identified in different studies .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None