Fig. 4From: Generalized estimation of the ventilatory distribution from the multiple-breath nitrogen washoutExamples of washout for the three tidal volume (VT) conditions. Left panel V T is constant; central panel V T is variable but end-expiratory lung volume (EELV) is constant; right panel variables V T and EELV. Closed circles are reference and open circles are recovered values. \(F_{{N_{2} }}^{et}\) is the N 2 end-tidal fractionBack to article page