[1] Med Univ Graz, Dept Dermatol & Venereol, Graz, Austria
[2] Charite, Dept Dermatol & Allergy, D-13353 Berlin, Germany
[3] Grenoble Univ Hosp, Natl Reference Ctr Angioedema, Dept Internal Med, Grenoble, France
[4] Shire, Eysins, Switzerland
[5] Univ Milan, Dipartimento Sci Biomed & Clin, Osped Luigi Sacco, Milan, Italy
[6] Hosp La Paz Inst Hlth Res IdiPaz, Dept Allergy, Madrid, Spain
[7] Barts Hlth NHS Trust, London, England