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. 2019 May 6;12:1081–1088. doi: 10.2147/IDR.S185081

Figure 3.

Figure 3

Determination of efflux pump activity by ethidium bromide (EtBr) cartwheel method. Different concentrations of EtBr were added to agar media and a loopful of fresh culture was inoculated. The plates were incubated at 37°C for overnight. The plates were visualized in UV illuminator and documented.