Takaishi, Koji
Tsukamoto, Shokichi
Ohwada, Chikako
Takeuchi, Masahiro
Kawasaki, Yohei
Nagai, Yurie
Mishina, Tatsuzo
Yamazaki, Miki
Isshiki, Yusuke
Kayamori, Kensuke
Kimura, Kenji
Hino, Yutaro
Oshima-Hasegawa, Nagisa
Mitsukawa, Shio
Takeda, Yusuke
Mimura, Naoya
Iseki, Tohru
Nakaseko, Chiaki
Sakaida, Emiko
Article History
First Online: 23 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This retrospective study was approved by the Ethics Committee of Chiba University School of Medicine. 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.
: This article does not contain any studies with animals performed by any of the authors.