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A new three-layer-funnel-shaped esophagogastric anastomosis for surgical treatment of esophageal car
AIM: To reduce the incidence of postoperative anastomoticleak, stenosis, gastroesophageal reflux (GER) for patientswith ......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......