Pulmonic flow/Systemic flow:VRatRto:Pt:Circulatory system.XXX:Qn:US.doppler
pulmonic flow/systemic flow:vratrto:pt:circulatory system.xxx:qn:us.doppler
Pulmonic flow/Systemic flow:VRatRto:Pt:Circulatory system.XXX:Qn:US.doppler
pulmonic flow/systemic flow:vratrto:pt:circulatory system.xxx:qn:us.doppler