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Table 1 Laboratory findings in hereditary angioedema

From: Canadian hereditary angioedema guideline

  C4 C1-INHAntigen C1INH Function
HAE - 1
HAE - 2 Normal or
HAE - nC1INH    
 -FXII mutation Normal Normal Normal
 -UnknownCause Normal Normal Normal
  1. References [9, 10].