Fig. (9) The two global cross-PDM pairs of the two-input CFA model obtained for the MABP input (left column) and the ETCO2 input (right column). Time-domain representation (top panels) and frequency-domain representation (bottom panels). The integrated values of the cross-PDMs are 0.0007 and 0.0121 for the MAPB input (1st and 2nd respectively) and 0.4498 and 2.4960 for the ETCO2 input (1st and 2nd respectively).