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Analysis of PCR using the PSL1-PSR1 (lanes A to D) and the G1-G2 (lanes E to H) primer pairs. Lanes: A and E, B. cepacia genomic DNA; B and F, control free of B. cepacia genomic DNA; C and G, PCR-positive clinical sample; D and H, PCR-negative clinical sample. Lane M contains a 100-bp molecular ladder; the most intense band corresponds to 600 bp.
