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Yu-Fei Lu, Zhi-Cai Liu, Zhong-Hong Li, Wen-Hao Ma, Fu-Rang Wang, Ya-Bing Zhang, Jian-Bang Lu. "Esophageal/Gastric Cancer Screening in High-risk Populations in Henan Province, China." Asian Pacific Journal of Cancer Prevention 15.3 (2014) 1419-1422