5395
Thus , our clinical observation suggests that patients treated with PTU should be carefully monitored for MPO - ANCA titers and variable manifestations of MPO - ANCA - associated vasculitis regardless of the period of administration .
 Chemical: PTU
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: PTU