3131
Women had lower 25 ( OH ) D levels than men ( 31 . 3 +/- 17 . 7 vs . 41 . 3 +/- 26 . 5 ng / mL , p < 0 . 001 ) .
 Chemical: 25 ( OH ) D
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 25 ( OH ) D