Voluntary ventilation.max^pre bronchodilator:VRat:Pt:Respiratory system:Qn
voluntary ventilation.max^pre bronchodilator:vrat:pt:respiratory system:qn
Voluntary ventilation.max^pre bronchodilator:VRat:Pt:Respiratory system:Qn
voluntary ventilation.max^pre bronchodilator:vrat:pt:respiratory system:qn