Methods: A retrospective analysis of patch-test results since October 2006 was done and yielded 28 patients allergic to PPD who were also tested with a hair dye series. From January 2004 through ...
In our study, only 1 of 27 individuals who tested negative for allergy to PTDS had positive reactions to any of the other substances in the hair dye series. One limitation of our study is that ...
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