14713
These observations indicate an overall preservation of pharmacodynamic responses to buprenorphine between conscious , naive rodents and healthy human subjects , particularly in brain regions implicated in pain and analgesia .
 Chemical: buprenorphine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: buprenorphine 
Answer:
 Chemical: buprenorphine