Research and control of well water pollution in high esophageal cancer areas

od Zhang, Xiu-Lan, Zhang, Bing, Zhang, Xing, Chen, Zhi-Feng, Zhang, Jun-Zhen, Liang, Shuo-Yuang, Men, Fan-Shu, Zheng, Shu-Liang, Li, Xiang-Ping, Bai, Xiu-Lan
izdano v World J Gastroenterol (2003)