1. From the Division of Allergy and Immunology, University of California, San Diego, La Jolla (M.A.R.); the Hungarian Angioedema Center of Reference and Excellence, Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary (H.F.); University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt (E.A.-P.), and the Institute of Allergology, Charité-Universitätsmedizin Berlin, Freie Universitätsmedizin Berlin and Humboldt-Universität zu Berlin, and Immunology and...