Textbook of Contact Dermatitis edited by Richard J.G. Rycroft, Torkil Menne, Peter J. Frosch.
10. 1. 1. 1 The Purpose of Patch Testing Patch testing is a well-established method of diagnosing allergic contact dermatitis, a delayed type of hypersensitivity (type IV reaction). Patients with a history and clinical picture of contact dermatitis are reexposed to the suspected allergens under cont...
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