18896
The present review focuses on the cellular / molecular aspects involved in resistance of tumor cells to camptothecins , including the potential role of cancer stem cells and deregulated miRNAs , and on the approaches proposed for overcoming resistance .
 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