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. 2017 Jul 5;67(6):655–672. doi: 10.1007/s12576-017-0554-8

Fig. 5.

Fig. 5

Computation of pulmonary input impedance. a, b Pressure and flow waveforms, respectively, recorded simultaneously. c Characteristic impedance (Zc) obtained from the instantaneous pulmonary pressure–flow plot (time domain manner) [13]. d, e Modulus and phase angle of the pulmonary input impedance computed from decomposed Fourier transform of pressure and flow, respectively