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HR recovery time following chemoreceptor stimulation is increased by MF. (A) Heart rate (bpm, beats per minute) upon chemoreceptor stimulation (closed arrow) during control, MF and washout. With MF the heart rate takes longer to return to resting levels upon chemoreceptor stimulation (open arrow). (B) Average heart rate recovery time upon chemoreceptor stimulation is increased with MF compared to control and washout. Asterisks denote significance, NS; not significant.
