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Frequency of appearance of myeloperoxidase - antineutrophil cytoplasmic antibody ( MPO - ANCA ) in Graves ' disease patients treated with propylthiouracil and the relationship between MPO - ANCA and clinical manifestations .
 Disease: Graves ' disease; Chemical: propylthiouracil
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:
 Disease: Graves ' disease; Chemical: propylthiouracil