1683
However , the GC genotype also affects circulating 25 - OHD independently of its effect 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