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Long-Jun He, Hong-Bo Shan, Guang-Yu Luo, Yin Li, Rong Zhang, Xiao-Yan Gao, Guo-Bao
Wang, Shi-Yong Lin, Guo-Liang Xu, Jian-Jun Li, Department of Endoscopy, Sun Yat-sen
University Cancer Center, Guangdong Esophageal Cancer Institute, Guangzhou 510060,
Guangdong Province, China.