The Korean Journal of Gastroenterology :eISSN 2233-6869 / pISSN 1598-9992

 

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Fig. 4. Endoscopy findings show (A) a protruding mass without black pigmentation, and black pigmented and (B) flat lesion in the esophagus.
Korean J Gastroenterol 2022;79:222~227 https://doi.org/10.4166/kjg.2022.031
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