Figure 3. Pulsed-field gel electrophoresis of three pairs of Pseudomonas aeruginosa isolates obtained from three patients from nasogastric tubes (lanes 2, 4, 6) and from oropharynx (lanes 3, 5, 7). Lane 1 shows the λ marker size (New England Biolabs, Eldan, Rosh Ha’ain, Israel).
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