987
Moreover , the addition of dexamethasone to the last two doses of mesna was more efficient than three doses of mesna alone when evaluated microscopically .
 Chemical: dexamethasone; Chemical: mesna; Chemical: mesna
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: dexamethasone; Chemical: mesna; Chemical: mesna