関連ワード:  is it better to use a spacer with an inhaler    is it better to use a spacer with ventolin    why is it important to use a spacer with an inhaler    when to use a spacer with an inhaler    is it preferable to use a spacer when administering asthma medication    why would you use a spacer with an inhaler    should i use a spacer with my inhaler  
結果 : is it better to use a spacer with an inhaler