Nakamura, Yosuke
Gotoh, Masafumi
Mitsui, Yasuhiro
Nakamura, Hidehiro
Ohzono, Hiroki
Okawa, Takahiro
Shiba, Naoto
Article History
Received: 16 January 2020
Accepted: 20 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: This retrospective study was approved by the institutional review board of the Kurume University where this study was conducted (approval no. 18136). Due to the retrospective nature of the study, the requirement of patient consent was waived.
: Not applicable
: The authors declare that they have no competing interests.