[1] Shire, Zug, Switzerland
[2] Cambridge Univ Hosp NHS Fdn Trust, Addenbrookes Hosp, Dept Immunol, Cambridge, England
[3] Barts Hlth NHS Trust, 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] Hosp La Paz, Inst Hlth Res IdiPaz, Dept Allergy, Biomed Res Network Rare Dis,CIBERER,U754, Madrid, Spain
[7] Fac Med ABC, Clin Immunol, Sao Paulo, Brazil
[8] Charite Univ Med Berlin, Dept Dermatol & Allergy, Berlin, Germany
[9] Univ Milan, ASST Fatebenefratelli Sacco, Dept Biomed & Clin Sci Luigi Sacco, Milan, Italy