8764
The in vivo immunoenhancement activity of EPS and Se - EPS induced by cyclophosphamide ( CY ) treatment in immunosuppressed mice was researched .
 Chemical: Se; Chemical: cyclophosphamide
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: Se; Chemical: cyclophosphamide