Hypersensitivity, DelayedSkin TestsHypersensitivity, ImmediateImmunity, CellularAllergensSkinAntigensDrug HypersensitivityHypersensitivityAlveolitis, Extrinsic AllergicDermatitis, ContactDentin SensitivityDinitrofluorobenzeneHyperalgesiaPicryl ChlorideDermatitis, Allergic ContactOxazoloneFood HypersensitivityDentin Desensitizing AgentsHaptensCell Migration InhibitionPain ThresholdAnaphylaxisIntradermal TestsDrug Eruptions