2749
Involvement of locus coeruleus and noradrenergic neurotransmission in fentanyl - induced muscular rigidity in the rat .
 Chemical: fentanyl; Disease: muscular rigidity
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: fentanyl; Disease: muscular rigidity