23406
CONCLUSION : When sensitizers were paired ( Met / TZD ) , a lower percentage of patients progressed to insulin during the study period , as opposed to patients who used a combination of a secretagogue with a sensitizer ( SU / TZD or Met / SU ) .
 Chemical: Met; Chemical: TZD; Chemical: TZD; Chemical: Met
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: Met; Chemical: TZD; Chemical: TZD; Chemical: Met