19471
Therapeutic drug monitoring - guided dosage adjustment seems justified for imatinib , but a formal predictive therapeutic range remains difficult to propose in the absence of prospective target concentration intervention trials .
 Chemical: imatinib
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: imatinib