Volume expired during 6.0 s of forced expiration:Vol:Pt:Respiratory system:Qn
volume expired during 6.0 s of forced expiration:vol:pt:respiratory system:qn
Volume expired during 6.0 s of forced expiration:Vol:Pt:Respiratory system:Qn
volume expired during 6.0 s of forced expiration:vol:pt:respiratory system:qn