我院1985年8～9月份对白城、通化地区沿线居民进行“卫生列车”巡诊,发现两地区不同类型慢性胃炎发病率有很大差别,并与两地区水质资料对照分析,认为有一定相关性。 From August to September 1985, residents of our hospital in Baicheng and Tonghua districts conducted a “health train” inspection and found that there were significant differences in the incidence rates of different types of chronic gastritis between the two regions. In addition, with the comparative analysis of the water quality data in the two regions, we found that there was a certain correlation .