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. 2016 Apr 20;11(4):e0152714. doi: 10.1371/journal.pone.0152714

Fig 4. Change in atmospheric pressure versus prevalence of MD episodes.

Fig 4

Scatter plot of change in atmospheric pressure DiffPressure in hPa versus prevalence of MD episodes. The black line corresponds to the loess smoother with k = 0.75. No relationship between prevalence of MD episodes and change in air pressure could be observed for air pressure values on day zero, two and three, but a roughly linear increasing relationship was found between the onset of an MD episode and change in air pressure one day before the event.