6618
For this purpose , the MouseFix (TM) and the FlexiPlate (TM) systems ( AO Development Institute , Davos , CH ) , allowing the creation of well defined osteotomies in mouse femora , were employed .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None