DOI:
10.1055/s-00025476
Endoscopy International Open
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References
Nagahama T, Yao K, Imamura K. et al.
Diagnostic performance of conventional endoscopy in the identification of submucosal invasion by early gastric cancer: the “non-extension sign” as a simple diagnostic marker.
Gastric Cancer 2017;
20: 304-313
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