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Furthermore , the situation during implantation of a TKR is quite unnatural : we investigated the PCL elevation after the tibia was cut .
 Anatomy: PCL; Anatomy: tibia
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: PCL; Anatomy: tibia