752
Patients began thalidomide at 400 mg / d and escalated as tolerated to 1200 mg / d by day 54 .
 Chemical: thalidomide
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