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Continue to ChatLaparoscopic double-flap technique after proximal gastrectomy for gastrointestinal stromal tumor in the esophagogastric junction https://www.sages.org/meetings/annual-meeting/abstracts-archive/laparoscopic-double-flap-technique-after-proximal-gastrectomy-for-gastrointestinal-stromal-tumor-in-the-esophagogastric-junction/