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In postrenal transplantation , thrombotic microangiopathy is often a reflection of hemolytic uremic syndrome .
 thrombotic microangiopathy, hemolytic uremic syndrome
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 thrombotic microangiopathy, hemolytic uremic syndrome