3727
Increased trabecular spacing , such as it occurs in osteoporosis , reduces the spatial field inhomogeneity and thus prolongs T2 * , which has been shown both in vitro and in vivo .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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