Fig. 4From: Maximal inspiratory and expiratory flow at moderate altitude: a study of a Latin American populationRegression lines (lowess) for A peak expiratory flow measured with the flowmeter, B spirometer and the C peak inspiratory flow measured by spirometry for women and men obtained in the present study and those already reported by several authors (stratifying by sex). PEFm, peak expiratory flow measured with a flowmeter; PEFs, peak expiratory flow measured with a spirometer; PIFs, peak inspiratory flow measured with a spirometerBack to article page