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This retrospective study examines the incidence and treatment of ESRD and chronic renal failure ( CRF ) in OLTX patients .
 ESRD, chronic renal failure, CRF
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 ESRD, chronic renal failure, CRF