26675
Compared to the detection rate of the well - established screening programs for breast ( 0 . 45 % ) and colorectal ( 0 . 27 % ) cancer , the prevalence of DTC seems to be much higher .
 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