[1] Leeds Teaching Hosp NHS Trust, Anaesthet Dept, Leeds, W Yorkshire, England
[2] Univ Texas Southwestern Med Ctr Dallas, Dept Internal Med, Div Allergy & Immunol, Dallas, TX USA
[3] Univ Clin Resp & Allerg Dis Golnik, Golnik, Slovenia
[4] Sir Charles Gairdner Hosp, Dept Anaesthesia, Nedlands, WA, Australia
[5] Anaesthet Allergy Referral Ctr Western Australia, Nedlands, WA, Australia
[6] Auckland City Hosp, Dept Anaesthesia & Perioperat Med, Auckland, New Zealand
[7] Grp Hosp Paris Seine St Denis, AP HP, Serv Anesthesie Reanimat, Paris, France
[8] Univ Paris 13, Sorbonne Paris Cite, Paris, France
[9] Univ Antwerp, Antwerp Univ Hosp, Dept Immunol Allergol & Rheumatol, Antwerp, Belgium
[10] Manchester Univ NHS Fdn Trust, Dept Immunol, Manchester, Lancs, England
[11] Copenhagen Univ Hosp, Dept Dermatol & Allergy, Danish Anaesthesia Allergy Ctr, Allergy Clin, Gentofte, Denmark
[12] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark
[13] Haukeland Hosp, Dept Anaesthesia & Intens Care, Bergen, Norway
[14] Univ Bergen, Dept Clin Med, Bergen, Norway
[15] Univ Leeds, Leeds Inst Med Res St Jamess, Leeds, W Yorkshire, England
[16] Brigham & Womens Hosp, Dept Anesthesiol, 75 Francis St, Boston, MA 02115 USA
[17] Monash Univ, Dept Anaesthesia & Perioperat Med, Melbourne, Vic, Australia
[18] Peninsula Hlth, Dept Anaesthesia, Melbourne, Vic, Australia
[19] Alfonso X El Sabio Univ, Hosp Cent Cruz Roja, Allergoanaesthesia Unit, Allergy Unit,Fac Med,ARADyAL, Madrid, Spain
[20] Hop Univ Strasbourg, Nouvel Hop Civil, Dept Anesthesia & Intens Care, Strasbourg, France
[21] Royal North Shore Hosp, Dept Anaesthesia, Sydney, NSW, Australia
[22] Univ Sydney, Sydney, NSW, Australia
[23] Univ Western Australia, Dept Pharmacol, Crawley, WA, Australia
[24] Leeds Teaching Hosp NHS Trust, Dept Clin Immunol & Allergy, Leeds, W Yorkshire, England
[25] Gunma Univ Hosp, Intens Care Unit, Maebashi, Gunma, Japan
[26] Policlin Hosp San Martino, Allergy Unit, Genoa, Italy
[27] Mayo Clin, Coll Med, Div Allerg Dis, Rochester, MN USA