title: Mediators of urticaria and angioedema.
mesh_terms: D000109:Acetylcholine / Q000276:immunology; D000799:Angioedema / Q000503:physiopathology*; D003174:Complement C1 Inactivator Proteins / Q000172:deficiency; D003165:Complement System Proteins / Q000378:metabolism; D005174:Factor XII / Q000378:metabolism; D006632:Histamine / Q000097:blood; D006801:Humans; D007105:Immune Complex Diseases / Q000503:physiopathology; D007073:Immunoglobulin E; D014581:Urticaria / Q000235:genetics / Q000503:physiopathology*
chemical_list: D003174:Complement C1 Inactivator Proteins; D007073:Immunoglobulin E; D006632:Histamine; D005174:Factor XII; D003165:Complement System Proteins; D000109:Acetylcholine