983
One , two or three doses of mesna were replaced with dexamethasone alone or with dexamethasone plus mesna .
 Chemical: mesna; Chemical: dexamethasone; Chemical: dexamethasone; 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: mesna; Chemical: dexamethasone; Chemical: dexamethasone; Chemical: mesna