M. Lyapina, K. Lyubomirova, T. Kundurzhiev, and M. Vizeva, “Pilot study of the prevalence of contact sensitization to preservatives as cosmetic ingredients in occupational and educational exposures”, AMB, vol. 50, no. 3, pp. 29–35, Sep. 2023, doi: 10.2478/AMB-2023-0027.