1900
Remifentanil - related complications were assessed during the remifentanil infusion , and pain caused by propofol was evaluated using a four - point scale during the propofol infusion .
 Chemical: Remifentanil; Chemical: remifentanil; Disease: pain; Chemical: propofol; 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: Remifentanil; Chemical: remifentanil; Disease: pain; Chemical: propofol; Chemical: propofol