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Article History

Received: 22 October 2020

Accepted: 16 December 2020

First Online: 5 January 2021

Compliance with ethical standards

:

: Dr. Takizawa reports personal fees from Takeda, personal fees from Otsuka, personal fees from EA Pharma, personal fees from Boston Scientific, personal fees from AstraZeneca, and personal fees from Taiho, outside the submitted work. Dr. Imai reports personal fees from Olympus, personal fees from Boston Scientific, personal fees from Chugai, and personal fees from EA Pharma, outside the submitted work. Dr. Bando reports personal fees from Kaken Pharmaceutical Co, and personal fees from Johnson and Johnson, outside the submitted work. Dr. Terashima reports personal fees from Taiho Pharmaceutical, personal fees from Chugai Pharma, personal fees from Ono Pharmaceutical, personal fees from BMS, personal fees from Yakult Honsha, personal fees from Takeda Pharma, personal fees from Eli Lilly, personal fees from Pfizer, personal fees from Daiichi Sankyo, grants and personal fees from Intuitive Surgical, personal fees from Johnson and Johnson, and personal fees from Medtornic, outside the submitted work. Dr. Ono reports personal fees from Otsuka, personal fees from EA Pharma, personal fees from Boston Scientific, personal fees from AstraZeneca, and personal fees from Olympus, outside the submitted work. The authors Yabuuchi, Kakushima, Kawata, Yoshida, Yamamoto, Kishida, Ito, Ishiwatari, Hotta, Matsubayashi, and Sugino have nothing to disclose.

: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions.

: Informed consent to be included in the study, or the equivalent, was obtained from all patients.

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