2988
MEASUREMENTS AND MAIN RESULTS : A total of 342 patients ( 105 dexmedetomidine and 237 propofol ) were included in the analysis , with 190 matched ( 95 in each group ) by propensity score .
 Chemical: dexmedetomidine; Chemical: propofol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: dexmedetomidine; Chemical: propofol