1240
In fact in clinical practice the absence of HLA risk groups 1 or 2 , allows to exclude the disease with high probability , while testing the three SNPs in HLA groups 3 or 4 could represent a further tool to identify less frequent CD cases .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities:  
Answer:
 None