Toritani, Kenichiro
Watanabe, Jun
Nakagawa, Kazuya
Suwa, Yusuke
Suwa, Hirokazu
Ishibe, Atsushi
Ota, Mitsuyoshi
Fujii, Shoichi
Kunisaki, Chikara
Endo, Itaru
Article History
Accepted: 25 April 2019
First Online: 17 May 2019
Compliance with ethical standards
: The study protocol was approved by the Ethical Advisory Committee of Yokohama City University School of Medicine before the study was initiated.
: The authors declare that they have no conflict of interest.