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对江苏扬中20余年肿瘤防治研究资料进行分析 ,从地理、饮用水、土壤、膳食、生物等方面探讨该地区环境与上消化道癌高发的相关关系
Analysis of tumor prevention research data of Jiangsu Yangzhong for more than 20 years, from the aspects of geography, drinking water, soil, diet, biology, etc. to explore the relationship between the environment and the high incidence of upper gastrointestinal cancer in this area