Hosokawa, Takafumi http://orcid.org/0000-0001-5733-9476
Nakajima, Hideto
Sawai, Taiki
Nakamura, Yoshitsugu
Sano, Eri
Tsukahara, Akihiro
Unoda, Kiichi
Ishida, Shimon
Sakane, Sadaki
Kimura, Fumiharu
Arawaka, Shigeki
Article History
Received: 25 January 2020
Accepted: 19 May 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: All subjects gave their verbal informed consent prior to their inclusion in the study. Written consent to participate was waived as the present study was a retrospective observational study. This study was approved by the Ethics Committee of Osaka Medical College (No. 2074) and was conducted according to the principles expressed in the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.