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Ribotyping patterns of MDR pneumococcal isolates from Korea digested with PvuII. Lane M is the DNA marker. Ribotype 1 is noted in MDR strains in lanes 3 to 8 with subtypes of ribotype 1 in lanes 1 to 2, while that of a penicillin-susceptible R6 (lane 9) is different from those of MDR strains.
