Transthoracic Single-Port Assisted Laparoscopic Five-Step Maneuver Lower Mediastinal Lymphadenectomy for Siewert Type II Adenocarcinoma of the Esophagogastric JunctionXiong, Wenjun; Chen, Yan; Zhu, Xiaofeng; Luo, Sijing; Peng, Yaohui; Li, Jin; Zheng, Yansheng; Luo, Lijie; Cui, Ziming; Wan, Jin; Wang, Wei*Science Citation Index Expanded广东省人民医院; 广州中医药大学摘要-关键词-