doctor performing pulmonary function test of female patient, spirometry assessment in medical hospital and lung healthcare. covid pneumonia or asthma exam of respiratory system breathing equipment. - 心肺系統 個照片及圖片檔肺量計, 體檢
mid section of a nurse injecting fluid into an intravenous drip in a patient's arm - 心肺系統 個照片及圖片檔病人, 針筒