Okuyama, Kenta http://orcid.org/0000-0001-5540-0325
Abe, Takafumi
Hamano, Tsuyoshi
Takeda, Miwako
Sundquist, Kristina
Sundquist, Jan
Nabika, Toru
Article History
Received: 22 January 2019
Accepted: 3 May 2019
First Online: 10 May 2019
Ethics approval and consent to participate
: The study protocol and procedure used to secure the informed consent of the participants were approved by the Ethics Committee of Shimane University #2888.
: The authors provide full consent for publishing the manuscript.
: The authors declare that they have no competing interests.