title: The challenge of hereditary angioneurotic edema.
mesh_terms: D000799:Angioedema / Q000097:blood / Q000209:etiology / Q000276:immunology; D001777:Blood Coagulation; D003172:Complement C1 / Q000378:metabolism; D003174:Complement C1 Inactivator Proteins / Q000378:metabolism; D003175:Complement C2 / Q000378:metabolism; D003165:Complement System Proteins / Q000378:metabolism; D005174:Factor XII / Q000378:metabolism; D015956:Factor XIIa; D006801:Humans; D010446:Peptide Fragments / Q000378:metabolism; D011288:Prekallikrein / Q000378:metabolism
chemical_list: D003172:Complement C1; D003174:Complement C1 Inactivator Proteins; D003175:Complement C2; D010446:Peptide Fragments; D005174:Factor XII; D003165:Complement System Proteins; D011288:Prekallikrein; D015956:Factor XIIa