Outani, Hidetatsu
Kakunaga, Shigeki
Hamada, Kenichiro
Takenaka, Satoshi
Nakai, Sho
Yasuda, Naohiro
Imura, Yoshinori
Naka, Norifumi
Araki, Nobuhito
Ueda, Takafumi
Yoshikawa, Hideki
Article History
Received: 24 September 2019
Accepted: 27 February 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the Helsinki Declaration. The present study was approved by the institutional review board.
: All authors have read and approved this manuscript and agree to publish this article.
: The authors declare that they have no competing interests.