26048
As the side effects of many new agents are distinct from those seen with conventional chemotherapy , these treatments are often explored in combination with each other or combined with conventional treatment regimens .
 None
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:  
Answer:
 None