2420
Quality of response was independent of previous lines of therapies or previous exposure to thalidomide or bortezomib .
 Chemical: thalidomide; Chemical: bortezomib
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: thalidomide; Chemical: bortezomib