Takeyama, Nobuyuki
Mizobuchi, Naruki
Sakaki, Masashi
Shimozuma, Yu
Munechika, Jiro
Kajiwara, Atsushi
Uchikoshi, Manabu
Uozumi, Syojiro
Ohgiya, Yoshimitsu
Gokan, Takehiko
Article History
First Online: 16 October 2018
Compliance with ethical standards
:
: No funding was received for this study.
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The Institutional Review Board waived the requirement for informed consent for this retrospective study.