Fractional collapse^inspiration:LenFr:Pt:Vena cava.inferior:Qn:US
fractional collapse^inspiration:lenfr:pt:vena cava.inferior:qn:us
Fractional collapse^inspiration:LenFr:Pt:Vena cava.inferior:Qn:US
fractional collapse^inspiration:lenfr:pt:vena cava.inferior:qn:us