Controversial aspects of adverse reactions to food.

Authors' af®liations: C. Ortolani, M. Ispano, Department of Allergology and Clinical Immunology, Niguarda Ca Granda Hospital, Milan, Italy C. Bruijnzeel-Koomen, Department of Dermatology, Academic Hospital, Utrecht, The Netherlands U. Bengtsson, Allergy Centre, Sahlgrenska University Hospital, GoÈ teborg, Sweden C. Bindslev-Jensen, Department of Dermatology, Odense University Hospital, Odense, Denmark B. BjoÈ rksteÂn, Department of Paediatrics, University Hospital, LinkoÈping, Sweden A. Hùst, Department of Paediatrics, Odense University Hospital, Odense, Denmark R. Jarish, Dermatologic and Pediatric Allergy Clinic, Vienna, Austria C. Madsen, Institute of Toxicology, National Food Agency of Denmark K. Nekam, Department of Allergy and Clinical Immunology, National Institute of Rheumatology and Physiotherapy, Budapest, Hungary R. Paganelli, Department of Clinical Medicine, University La Sapienza, Rome, Italy L.K. Poulsen, Laboratory of Medical Allergology, National University Hospital, Copenhagen, Denmark B. WuÈ thrich, Allergy Unit, Department of Dermatology, University Hospital, Zurich, Switzerland