Peak flow meter device that measures the amount of air a person can forcefully blow out of their lungs. It is one indicator of airways changes that may occur in people with asthma or COPD

Peak flow meter device that measures the amount of air a person can forcefully blow out of their lungs. It is one indicator of airways changes that may occur in people with asthma or COPD - 157301932

类似图片库 (矢量图片,SVG与EPS)

to-top-page