1613
Serum creatinine values did not change significantly : 1 . 98 + / - 0 . 8 mg / dL before SRL therapy and 2 . 53 + / - 1 . 9 mg / dL at last follow - up ( P = . 14 ) .
 Chemical: creatinine; Chemical: SRL
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: creatinine, SRL 
Answer:
 Chemical: creatinine; Chemical: SRL