Utility of uneven double-lumen catheter for difficult guidewire manipulation in endoscopic ultrasonography-guided pancreaticogastrostomy.

Competing Interests: H. Isayama has received research grants from Boston Scientific Japan and FUJIFILM Corporation. The funding source had no role in the design, practice, or analysis of this study. A. Machida, Y. Takasaki, S. Takahashi, A. Suzuki, S. Ishii, and T. Fujisawa declare that they have no conflict of interest.