The international EAACI/GA²LEN/EuroGuiDerm/APAAACI guideline for the definition, classification, diagnosis, and management of urticaria

Humboldt-Universität zu Berlin, Freie Universität Berlin, Charité - Universitätsmedizin Berlin, Hospital Kuala Lumpur, Abu Dhabi Health Services, Inception Institute of Artificial Intelligence, Mater Dei Hospital, Ospedale San Carlo, Dermatology Research Center, Kantonsspital St. Gallen, University Hospital of Zurich, Medical University of Vienna, Montreal Children's Hospital, McGill University, University of Cincinnati, University of Southern Denmark, Odense University Hospital, Technical University of Munich, University of Opole, Universidade Federal do Paraná, University of Southampton, Faculdade de Medicina do ABC, Sociedade Brasileira de Cardiologia, Federal Medical-Biological Agency, Universidade Federal de São Paulo, Long Island University, New York University, University of Debrecen, Istanbul University, Universitat Pompeu Fabra, Hospital del Mar Research Institute, D.Y. Patil University, University of Coimbra, Guy's Hospital, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel, Evangelisches Krankenhaus Bielefeld, Centre hospitalier universitaire de Québec, Université Laval, Hiroshima University, Hiroshima City Asa Citizens Hospital, Medical University of South Carolina, Medizinische Hochschule Hannover, Bnai Zion Medical Center, Rappaport Family Institute for Research in the Medical Sciences, Koç University, Siriraj Hospital, Mahidol University, Hospital Médica Sur, University of Helsinki, Helsinki University Hospital, The Royal Free Hospital, University College London, Fraunhofer Institute for Translational Medicine and Pharmacology, National and Kapodistrian University of Athens, University General Hospital Attikon, Smolensk State Medical University, University of Groningen, Nippon Medical School, University of Milan, Universidad Nacional de Asunción, Hospital Juárez de México, Hacettepe University, Kuopio University Hospital, Inserm, Sorbonne Université, Assistance Publique – Hôpitaux de Paris, Centre d'Immunologie et des Maladies Infectieuses, Hôpital Tenon, Johannes Gutenberg University Mainz, University Medical Center of the Johannes Gutenberg University Mainz, University of Perugia, St. Michael's Hospital, University of Toronto, University of Copenhagen, Bispebjerg Hospital, Aarhus University Hospital, Peking University, Peking University First Hospital