title: [What is allergy?].
authors.forename: F
authors.initials: F
authors.lastname: Leynadier
mesh_terms: D005189:False Positive Reactions; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000175:diagnosis* / Q000209:etiology / Q000276:immunology*; D006969:Hypersensitivity, Immediate / Q000175:diagnosis* / Q000209:etiology / Q000276:immunology*