Sobel, A T The second component of complement (C2) as an index of hereditary angioneurotic edema. [electronic resource] - Journal of clinical & laboratory immunology Nov 1978 - 179-81 p. digital Publication Type: Journal Article ISSN: 0141-2760 Subjects--Topical Terms: Angioedema--diagnosisComplement C1 Inactivator ProteinsComplement C2Complement C4Danazol--therapeutic useHumans