878
A lod score of 13 was calculated for linkage between C2 deficiency and HLA - B at a maximum likelihood value of the recombinant fraction of 0 .
 Disease: C2 deficiency
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: C2 deficiency