3780
To our knowledge this is the first report of heterozygous C2 deficiency in association with this combination of autoimmune disorders , and we discuss the aetiological implications . .
 C2 deficiency, autoimmune disorders
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 C2 deficiency, autoimmune disorders