1834
We used cyclophosphamide - accelerated BDC2 . 5 T - cell receptor transgenic nonobese diabetic mice , which experience development of type 1 diabetes during a 7 - day time period after cyclophosphamide injection , whereas transgene - negative mice do not .
 Chemical: cyclophosphamide; 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: cyclophosphamide; Chemical: cyclophosphamide