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Article History

Received: 30 April 2018

Accepted: 11 July 2018

First Online: 8 August 2018

Ethics approval and consent to participate

: This study was conducted in accordance with the guidelines of the Declaration of Helsinki and approved by the ethics committees of Kodokan Bldg. Clinic (approval number 2017-2). We obtained written informed consent from all participants.

: We have also obtained the consent to publish from the participant.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.