Funding for this research was provided by:
Japan Society for the Promotion of Science (18K09595)
Text and Data Mining valid from 2019-02-25
Received: 20 September 2018
Accepted: 14 January 2019
First Online: 25 February 2019
Ethics approval and consent to participate
: The study design and consent forms of all the procedures performed were approved by the ethics committee for human participants of the Niigata University School of Medicine (Niigata, Japan) in accordance with the Helsinki Declaration of 1964 as revised in 2013. Written informed consents to participate in the study were obtained from all the participants.
: Written informed consent for the publication of these were obtained from all the participants.
: Akira Takahashi, Shotaro Takahashi, Tetsuhiro Tsujino, Kazushige Isobe, Taisuke Watanabe, Yutaka Kitamura, Takao Watanabe, Koh Nakata, and Tomoyuki Kawase declare that they have no competing interests.
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