16650
There was a significant inverted relationship of creatinine - adjusted urine UA concentrations and the time - weighted index of cumulative blood lead levels ( TWICL ) that may be significantly influenced by the AC genotypes of rs11640851 in exon 2 and rs8052394 in exon 3 .
 Chemical: creatinine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: creatinine