23272
The average rate of long - bone fracture ( femur , tibia / fibula , humerus , radius / ulna ) in pediatric patients was 0 . 62 fractures per year , half of which affected the tibia / fibula .
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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