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. 2014 Oct;33(2):94–99.

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Figure 1. — A) At the programmed sensitivity of 0.1 mV with BP sensing configuration the FFRS after sensed and paced R-wave is present during the automatic P-wave amplitude test, as indicated by the atrial sense marker corresponding to the R-wave. B) With the atrial sensitivity setting of 1.2 mV FFRS is no longer observed during the test.