Arai, Masatoku
Kim, Shiei
Ishii, Hiromoto
Hagiwara, Jun
Kushimoto, Shigeki
Yokota, Hiroyuki
Article History
Received: 6 June 2018
Accepted: 22 August 2018
First Online: 4 September 2018
Ethics approval and consent to participate
: This study received approval from the Institutional Review Board (29-01-879).
: Written consent was received from the patients for the use of their data and the distribution of the questionnaire.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.