3283
By contrast , we were unable to substantiate an increased risk from paracetamol consumption for renal papillary necrosis or any of these cancers although there was a suggestion of an association with cancer of the ureter .
 paracetamol, renal papillary necrosis, cancers, cancer of the ureter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 paracetamol, renal papillary necrosis, cancers, cancer of the ureter