1498
Elevated expression of FGF23 may therefore play a crucial role in defining immune responses to vitamin D and this , in turn , may be a key determinant of infection in patients with chronic kidney disease ( CKD ) .
 Chemical: vitamin 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: vitamin D