title: C2 deficiency and a lupus erythematosus-like illness: family re-evaluation.
mesh_terms: D000328:Adult; D003175:Complement C2 / Q000172:deficiency*; D005260:Female; D006680:HLA Antigens / Q000235:genetics; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000235:genetics* / Q000276:immunology; D008297:Male; D010375:Pedigree
chemical_list: D003175:Complement C2; D006680:HLA Antigens