Funding for this research was provided by:
Japanese Ministry of Education, Culture, Sports, Science and Technology (17K12458)
Received: 29 October 2018
Accepted: 30 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: This study was approval by the Ethics Committee of the Kanazawa University School of Medicine (approval No. 185). Participants provided written informed following written and oral explanations from the researchers.
: Not applicable.
: The authors declare that they have no competing interests.