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Figure 1: The mean and SEM of PEF (in liters/min) by forced vital capacity maneuver vs. PEF (in liters/min) by peak fl ow maneuver Graphical representation of the mean as well as the standard error of mean (mean 2SE) for [i] PEFVM fl ow volume maneuver; and [ii] PEFPFM the peak expiratory fl ow maneuver

Figure 1: The mean and SEM of PEF (in liters/min) by forced vital capacity maneuver vs. PEF (in liters/min) by peak fl ow maneuver Graphical representation of the mean as well as the standard error of mean (mean  2SE) for [i] PEFVM  fl ow volume maneuver; and [ii] PEFPFM  the peak expiratory fl ow maneuver