Assay of the second component of serum complement in a variety of human diseases.
D000799:Angioedema / Q000276:immunology*; D003165:Complement System Proteins / Q000032:analysis*; D004950:Esterases / Q000097:blood*; D005470:Fluorometry; D006801:Humans; D007945:Leukemia, Lymphoid / Q000276:immunology*; D009369:Neoplasms / Q000276:immunology*; D014581:Urticaria / Q000276:immunology*
D003165:Complement System Proteins; D004950:Esterases