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. 2019 Jul 24;7(8):E987–E993. doi: 10.1055/a-0953-1909

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This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 1 — Image of the widened view angle. a View of the CF-H260AI. Distance from the tip of the endoscope to the subject, 3.0 cm; distance from the center to the right end, 3.3 cm. b View of the CF-HQ290ZI. Distance from the tip of the endoscope to the subject, 3.0 cm; distance from the center to the right end, 4.3 cm.