[1] Hosp La Paz, Inst Hlth Res IdiPaz, ES-28046 Madrid, Spain
[2] Univ Barcelona, Barcelona, Spain
[3] Univ Padua, Padua, Italy
[4] Catania Univ, Catania, Italy
[5] Penn State Univ, Milton S Hershey Med Ctr, Coll Med, Hershey, PA 17033 USA
[6] McMaster Univ, Hamilton, ON, Canada
[7] Grenoble Univ Hosp, Dept Internal Med, Natl Reference Ctr Angioedema, Grenoble, France
[8] Derriford Hosp, Plymouth PL6 8DH, Devon, England
[9] Johannes Gutenberg Univ Mainz, D-55122 Mainz, Germany