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Agarose gel electrophoresis of PCR products of the icaADB gene with the size of 546 bp. M-DNA molecular weight marker 1000 bp (DNA Marker 1, A&A Biotechnology Poland), 1-S. epidermidis ATCC 35984 icaADB(+) strain, 2–28-clinical strains of Staphylococcus epidermidis.
