Gas flow at 25-75% of forced expiration:VRat:Pt:Respiratory system:Qn
gas flow at 25-75% of forced expiration:vrat:pt:respiratory system:qn
Gas flow at 25-75% of forced expiration:VRat:Pt:Respiratory system:Qn
gas flow at 25-75% of forced expiration:vrat:pt:respiratory system:qn