DOI:
10.1055/s-00025476
Endoscopy International Open
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References
Choe WH, Kim JH, Ko SY et al.
Comparison of transnasal small-caliber vs. peroral conventional esophagogastroduodenoscopy for evaluating varices in unsedated cirrhotic patients.
Endoscopy 2011;
43: 649-656
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