慢性气管炎是一种危害劳动人民身体健康的常见病,多发病,据统计全国患病人数达3,000万以上。为了观察其发展过程,掌握变化规律,总结经验,阻止病情恶化,特将本院自1971年以来所治疗的慢性气管炎病例,进行了9年的随访观察,以探讨其防治 Chronic bronchitis is a common disease that endangers the health of working people. It is frequently reported that more than 30 million people are suffering from diseases in the country. In order to observe its development process, grasp the changing rules, summarize the experience, to prevent the deterioration of the disease, especially the hospital since 1971 treated chronic bronchitis cases, for 9 years follow-up observation to explore its prevention and treatment