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Frequent exposure to materials and their influence on the development of vitiligo. (A) The materials to which patients were most frequently exposed in the home and workplace were cleaning products (30.0%), followed by cosmetics (17.0%), hair dye (11.4%), nickel (11.2%), rubber (7.3%) and clothing (5.5%). (B) Ninety-five patients (20.2%) reported that frequent exposure to certain materials and environments in daily life affected the development of their vitiligo.
