2736
To determine the molecular basis of type I C2 deficiency , the C2 gene and cDNA were characterized from a homozygous type I C2 - deficient individual with the common associated haplotype / complotype .
 type I C2 deficiency, type I C2 - deficient
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 type I C2 deficiency, type I C2 - deficient