2842
On average , TrabBMD - Z and CortBMD - Z did not change significantly over the study interval ; however , CortArea - Z decreased ( p = 0 . 003 ) .
 None
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