Washio, Yasuyoshi https://orcid.org/0000-0001-6692-7202
Ito, Akihiro
Kumagai, Shogo
Ishida, Tadashi
Yamazaki, Akio
Article History
Received: 12 July 2017
Accepted: 4 January 2018
First Online: 30 January 2018
Ethics approval and consent to participate
: This study was approved by the institutional review board of Kurashiki Central Hospital (approval number 2235). All patients provided informed consent to participate in this study.
: Not applicable.
: TI has received honoraria from Pfizer, Japan, Inc. The other authors declare that they have no competing interests.
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