Expiratory gas flow.max^post therapy:VRat:Pt:Respiratory system.airway:Qn:Peak flow meter
expiratory gas flow.max^post therapy:vrat:pt:respiratory system.airway:qn:peak flow meter
Expiratory gas flow.max^post therapy:VRat:Pt:Respiratory system.airway:Qn:Peak flow meter
expiratory gas flow.max^post therapy:vrat:pt:respiratory system.airway:qn:peak flow meter