Funding for this research was provided by:
Takeda Science Foundation
Text and Data Mining valid from 2019-02-15
Received: 4 December 2018
Accepted: 8 February 2019
First Online: 15 February 2019
Ethics approval and consent to participate
: All procedures performed in studies involving human tissue were in accordance with the ethical standards of the institutional and/or national research committee and with the principles of the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This retrospective study was approved by the ethics committee of the Faculty of Medical Sciences, University of Fukui (No. 20160030).
: Not applicable.
: The authors declare that they have no competing interests.
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