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Number of patients with patch tests that were positive to Myroxylon pereirae (balsam of Peru) and/or fragrance mix 1, associated or not with allergy to sorbitan sesquioleate. (Note: the circle representing sorbitan sesquioleate is not in scale.) Allergy to sorbitan sesquioleate is shown because this substance can be a component of both fragrance mix 1 and Myroxylon pereirae preparations used for patch tests
