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Gel electrophoresis of the real-time PCR. L, 20-bp ladder. Tested sample (lane 1) and positive control (lane 2), both at an 84-bp length, and a negative control (lane 3) of the first PCR are shown. Tested sample (lane 4) and positive control (lane 5) both at a 130-bp length, and negative control (lane 6) of the second PCR are also shown.
