405
For obvious reasons , in this in vivo study we could not test what would have happened to the orientation of the PCL when the collateral structures were resected .
 Anatomy: PCL; Anatomy: collateral structures
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: PCL, collateral structures 
Answer:
 Anatomy: PCL; Anatomy: collateral structures