1803
CONCLUSIONS : The rate of contrast - induced nephropathy , defined by multiple end points , is not statistically different after the intraarterial administration of iopamidol or iodixanol to high - risk patients , with or without diabetes mellitus .
 nephropathy, iopamidol, iodixanol, diabetes mellitus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 nephropathy, iopamidol, iodixanol, diabetes mellitus