11452
There were significant differences ( p < 0 . 05 ) between the fracture and nonfracture groups in the total femur BMD ( 13 % ) , trabecular BMD in the distal radius ( 4 % ) , and the fractal dimension in the radiographs ( FD2 ) ( 3 % ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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