Suzuki, Satoshi
Fujiwara, Hirokazu
Nori, Satoshi
Tsuji, Osahiko
Nagoshi, Narihito
Okada, Eijiro
Fujita, Nobuyuki
Yagi, Mitsuru
Nohara, Ayato
Kawakami, Noriaki
Michikawa, Takehiro
Nakamura, Masaya
Matsumoto, Morio
Watanabe, Kota http://orcid.org/0000-0002-4830-4690
Article History
Received: 27 May 2020
Accepted: 3 November 2020
First Online: 27 November 2020
Compliance with ethical standards
:
: Satoshi Suzuki, Hirokazu Fujiwara, Satoshi Nori, Osahiko Tsuji, Narihito Nagoshi, Eijiro Okada, Nobuyuki Fujita, Mitsuru Yagi, Ayato Nohara, Takehiro Michikawa, Masaya Nakamura and Kowa Watanabe have no conflicts of interest. Morio Matsumoto reports receiving grants from Medtronic and Nu Vasive that are outside the scope of the submitted work. Noriaki Kawakami also reports receiving grant from Health and Labor Science Research Grant Japan, and non-financial support from EOS Imaging that are outside the scope of the submitted work.
: Approval was obtained from the ethics committee of Keio University School of Medicine. The procedures used in this study adhere to the tenets of the Declaration of Helsinki.
: Informed consent was obtained from all individual participants included in the study.