[1] Hosp La Paz, Inst Hlth Res IdiPaz, Biomed Res Network Rare Dis CIBERER, U754, Madrid, Spain
[2] Charite, Allergie Ctr Charite, Dept Dermatol & Allergy, D-13353 Berlin, Germany
[3] Barts Hlth NHS Trust, Dept Immunol, London, England
[4] Med Univ Graz, Dept Dermatol & Venereol, Graz, Austria
[5] Grenoble Univ Hosp, Dept Internal Med, Natl Reference Ctr Angioedema, Grenoble, France
[6] Shire, Zug, Switzerland
[7] Univ Milan, Osped Luigi Sacco, Dipartimento Sci Biomed & Clin Luigi Sacco, Milan, Italy