6479
We used carbamazepine as a model drug and studied the effect of different centrifugation times on ultrafitrate volume and the related effects on unbound carbamazepine measurement .
 Chemical: carbamazepine; Chemical: carbamazepine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: carbamazepine; Chemical: carbamazepine