7923
Considering the data presented in this study , we suggest that the oxidative / nitrative stress in plasma obtained from breast cancer patients ( not only before or after the surgery , but also after various phases of doxorubicin and cyclophosphamide chemotherapy ) may induce changes of hemostatic activity , which may contribute to thrombosis in these patients .
 Chemical: doxorubicin; Chemical: cyclophosphamide
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: doxorubicin, cyclophosphamide 
Answer:
 Chemical: doxorubicin; Chemical: cyclophosphamide