The chinese subsidiary shanghai longhua hospital , professor hui - yong zhang : " old chronic bronchitis , " which is a very high incidence of the lung disease , the symptoms of recurrent respiratory tract infection , clinical 多 見 cough with sputum , shortness of breath breathing space and time for a long time qi deficiency , fluid yumao , expectoration powerless 上海中醫(yī)大附屬龍華醫(yī)院呼吸內(nèi)科張惠勇教授: “老慢支”是一種發(fā)病率非常高的肺部疾病,其癥狀表現(xiàn)為反復(fù)呼吸道感染,臨床多見咳嗽多痰、喘息氣短、時(shí)間久了肺氣虧虛、津液虧耗、咳痰無力。