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Described here are 2 patients who developed thrombotic microangiopathy of the kidneys after receiving high cumulative doses of the new anticancer drug gemcitabine .
 thrombotic microangiopathy, gemcitabine
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 thrombotic microangiopathy, gemcitabine