Tidal volume.spontaneous+mechanical/Body weight^on ventilator^corrected for compressible gas volume:VCnt:Pt:Respiratory system:Qn
tidal volume.spontaneous+mechanical/body weight^on ventilator^corrected for compressible gas volume:vcnt:pt:respiratory system:qn
Spont+mech VT/BW on vent corrected VCnt
spont+mech vt/bw on vent corrected vcnt