Insect-sting challenge in 138 patients: Relation between clinical severity of anaphylaxis and mast cell activation

One hundred thirty-eight patients with a previous anaphylactic reaction to a yellow jacket or a honeybee sting, as well as eight volunteers, were subjected to an in-hospital sting challenge. Plasma levels of histamine, tryptase, and prostaglandin D 2 (PGD 2) during sting challenge were studied in re...

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