1617
Mean serum creatinine level before conversion was 2 . 21 mg / dL and thereafter , 4 . 93 mg / dL ( P = . 02 ) .
 Chemical: creatinine
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 
Answer:
 Chemical: creatinine