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Opálek A, Emmer Š, Čička R, Beronská N, Oslanec P Jr, Kováčik J.Opálek A, et al. Among authors: kovacik j.Materials (Basel). 2021 Nov 22;14(22):7089. doi: 10.3390/ma14227089.Materials (Basel). 2021.PMID: 34832491Free PMC article.