Received: 20 January 2019
Accepted: 21 November 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: The research ethics was approved Minamisoma Municipal General Hospital Ethics Committee. The original ethics documents were processed in Japanese, which are provided as the Additional file InternalRef removed. The informed consent was obtained from all the participants on written forms.
: As all the interview data were anonymised, the consent for publication is not applicable for this research.
: The authors declare that they have no competing interests.