557
Each received 20 mL of one of three test solutions : levobupivacaine control , levobupivacaine and fentanyl 2 microg / mL , or levobupivacaine and fentanyl 3 microg / mL .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None