辽宁省从1984年建立起肿瘤发病和全部死亡的登记报告制度，同时着重研究了吸烟、空气污染。职业暴露对居民健康、肺癌、呼吸系统病发病的影响。虽然弄清了一些问题，但仍留下许多疑问。总结一下我们所面对的事实，以及存在的问题，以探讨今后研究的方法。一、我们面对的事实是 Liaoning Province established a registration and reporting system for the onset of cancer and all deaths in 1984. At the same time, it focused on smoking and air pollution. The impact of occupational exposure on residents’ health, lung cancer, and respiratory disease. Although some questions have been made clear, many questions remain. Summarize the facts that we face and the problems that exist, in order to discuss the methods for future research. First, we face the fact that