1681
Moreover , the effect of GC SNPs on 25 - OHD are evident after adjusting for their effects on circulating DBP .
 Chemical: 25 - OHD
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 - OHD