Metal versus plastic stents for walled-off pancreatic necrosis: much alike, then which?

Competing Interests: H. Isayama has received research funding from Boston Scientific Japan, Fujifilm, and Piolax Medical Devices; honoraria from Boston Scientific Japan, Century Medical, Create Medic, Fujifilm, Gadelius Medical, Hitachi Medical, Japan Lifeline, Kaneka, Kawasumi Laboratories, Olympus Medical, Piolax Medical Devices, Sumitomo Bakelite, UMIDAS, and Zeon Medical; and contributions from Boston Scientific Japan, Gadelius Medical, Japan Lifeline, and Zeon Medical. This paper was not funded by any of these companies. T. Saito, T. Hamada, H. Shiomi, and A. Sakai declare that they have no conflict of interest.