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CONCLUSIONS : PTU therapy may be related to the appearance of MPO - ANCA , but MPO - ANCA does not appear to be closely related to vasculitis .
 Chemical: PTU; Disease: vasculitis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: PTU; Disease: vasculitis