Hosokawa, Takahiro
Tanami, Yutaka
Sato, Yumiko
Oguma, Eiji
Article History
Received: 25 January 2020
Accepted: 4 March 2020
First Online: 11 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This research was performed in accordance with the tenets of the Declaration of Helsinki.
: This retrospective study was approved by the ethics committee of our institution, and informed consent was waived.