17594
We analyzed the association of serum vitamin D level assessed by 25 - hydroxyvitamin D ( 3 ) { 25 ( OH ) D ( 3 ) } with nonalcoholic fatty liver disease ( NAFLD ) in apparently healthy men .
 Chemical: vitamin D; Chemical: 25 - hydroxyvitamin D ( 3 ); Chemical: 25 ( OH ) D ( 3 )
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: vitamin D; Chemical: 25 - hydroxyvitamin D ( 3 ); Chemical: 25 ( OH ) D ( 3 )