Hongyo, Hidenari
Higashihara, Hiroki
Osuga, Keigo
Kashiwagi, Eiji
Kosai, Shinya
Nagai, Keisuke
Tanaka, Kaishu
Ono, Yusuke
Ujike, Takeshi
Uemura, Motohide
Imamura, Ryoichi
Nonomura, Norio
Tomiyama, Noriyuki
Article History
Received: 7 September 2020
Accepted: 13 November 2020
First Online: 21 November 2020
Ethics approval and consent to participate
: This retrospective study was approved by the ethics committee of our hospital. Formal consent is not required for this type of study.
: Not applicable.
: The authors declare that they have no competing interests.