Harada, Makoto http://orcid.org/0000-0002-6209-7683
Fujii, Kazuaki
Yamada, Yosuke
Tsukada, Wataru
Tsukada, Manabu
Hashimoto, Koji
Kamijo, Yuji
Article History
Received: 20 February 2020
Accepted: 1 June 2020
First Online: 17 June 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This study was approved by the institutional review board of the ethical committee at Shinshu university school of medicine (approval number: 1996) and was conducted in accordance with the principles of the Declaration of Helsinki as revised in 2008.
: Written informed consents were obtained from all patients before starting the study.