title: Endoscopic ligation for benign and malignant lesions of upper digestive tract.
authors.affiliation: Yu-Long Chen, Yong-Zhong Chen, Jian-Xiang Zou, Department of Gastroenterology, The First Affiliated Hospital of Henan Medical University, Zhengzhou 450052, Henan Province, China.
authors.forename: Y L
authors.initials: YL
authors.lastname: Chen
authors.affiliation: Yu-Long Chen, Yong-Zhong Chen, Jian-Xiang Zou, Department of Gastroenterology, The First Affiliated Hospital of Henan Medical University, Zhengzhou 450052, Henan Province, China.
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Chen
authors.affiliation: Yu-Long Chen, Yong-Zhong Chen, Jian-Xiang Zou, Department of Gastroenterology, The First Affiliated Hospital of Henan Medical University, Zhengzhou 450052, Henan Province, China.
authors.forename: J X
authors.initials: JX
authors.lastname: Zou
authors.affiliation: Yu-Long Chen, Yong-Zhong Chen, Jian-Xiang Zou, Department of Gastroenterology, The First Affiliated Hospital of Henan Medical University, Zhengzhou 450052, Henan Province, China.
authors.forename: X L
authors.initials: XL
authors.lastname: Li
keywords: Esophageal and gastric varices; Liver neoplasms; Polyp