17210
With the model - estimated effect of sorafenib on RCC growth , we calculated the power of randomized phase II trials between sorafenib and hypothetical comparators over a range of effects .
 Chemical: sorafenib; Chemical: sorafenib
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: sorafenib; Chemical: sorafenib