Text and Data Mining valid from 2018-11-15
Received: 30 July 2017
Accepted: 7 November 2018
First Online: 15 November 2018
Ethics approval and consent to participate
: Written informed consent was obtained from all the participants and the analysis was ethically approved at our institution. The approval number from the ethics committee is CWOM9803–0060 in Radboud University Medical Center. The approval number from the ethics committee is H27–023-3 in Yamaguchi University Hospital.
: Not applicable.
: The authors declare that they have no competing interests.
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