Double-scope technique to recover from hand-suturing trouble in the duodenum.

Competing Interests: Y. M. has an R&D consulting contract with Olympus Corporation. E. I. received lecture fees from Takeda Pharmaceutical Co., Ltd., and belonged to an endowed course supported by companies including Ono Pharmaceutical Co., Ltd., Miyarisan Pharmaceutical Co., Ltd., Sanwa Kagaku Kenkyusho Co., Ltd., Otsuka Pharmaceutical Co., Ltd., Fujifilm Medical Co., Ltd., Terumo Corporation, FANCL Corporation, Ohga Pharmacy, and Abbott Japan, LLC. E. I. also received a lecture honorarium from Takeda Pharmaceutical Company until March 2023. M. T. has received a donation from Olympus Corporation for the project of international medical tele education. However, there is no COI related to this report. No COI exists for the other authors related to this article.