ESSCA results with the baseline series, 2002-2012: p-phenylenediamine.
Marie-Louise A SchuttelaarTatiana A VogelFrancesca RuiBeata KręciszDorota Chomiczewska-SkoraMarta Kieć-ŚwierczyńskaWolfgang UterFrancesca Larese FilonPublished in: Contact dermatitis (2016)
The prevalence of PPD sensitization has not changed over time. Strong and extremely strong patch test reactions are seen more often in the South, probably because of the higher number of PPD-containing hair dye products.
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