18895
The relevance of these mechanisms to clinical drug resistance has not yet been completely defined , but their evaluation in clinical specimens should help to define personalized treatments including camptothecins as single agents or in combination with other cytotoxic and target - specific anticancer agents .
 Chemical: camptothecins
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: camptothecins