4512
The average backscatter coefficient was six time larger in regions of infarct studied 8 - - 10 weeks after occlusion than that in regions of infarct studied 5 - - 6 weeks after occlusion .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None