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. 2002 Jul 9;2:17. doi: 10.1186/1471-2180-2-17

Figure 1.

Figure 1

Determination of the efficiency for the standard, reference and clinical samples. The threshold cycle is the cycle number at which the fluorescence curve for a given sample crosses the user-defined noise band. Log to the concentration for the reference samples is set as log to arbitrary numbers with four-fold difference as the reference samples are four-fold serial dilutions. The actual concentration is not needed when determining the efficiency as it depends on the slope of the line only.

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