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Article History

Received: 11 November 2016

Accepted: 22 February 2017

First Online: 2 March 2017

Compliance with ethical standards

:

: 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 is a retrospective medical record review study. The patients were treated as per the protocol, and a retrospective waiver of consent was obtained from the Clinical Study Ethics Review Board of Kindai University Nara Hospital (approval No. 362).

: Author A.M. has received research grants from Otsuka, Teijin Pharma, Torii, Taisho-Toyama and Sanofi. Author A.M. has received a speaker honorarium from Kirin, Takeda, Otsuka, MSD, Novartis, Kissei, Boehringer Ingelheim, Chugai, and Mylan.

: This study was funded by Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (26461230).