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Fig. 4 | Genome Biology

Fig. 4

From: Methicillin-resistant Staphylococcus aureus emerged long before the introduction of methicillin into clinical practice

Fig. 4

The time to most recent common ancestor (TMRCA) of the archetypal MRSA isolates under various combinations of clock and population model in BEAST. Plots showing mean (dots) TMRCA and 95% highest posterior density for the TMRCA are indicated. The dates of introduction of penicillin and methicillin into clinical use in the UK are indicated with green and red lines, respectively

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