Funding for this research was provided by:
Grant-in-Aid for Young Scientists (B) from the Japan Society for the Promotion of Science (8505-26861987)
Received: 11 September 2018
Accepted: 25 November 2019
First Online: 5 December 2019
Ethics approval and consent to participate
: This study was conducted with the informed consent of all participants and the approval of the Research Ethics Committee of St. Luke’s International University (ID# 13–065).This study was conducted with the approval of the ethics review committee of St. Luke’s International University, with which the author was affiliated at the time of the study (approved February 2014; no. 13–065). In addition, if the patients consented to their attending nurse’s involvement in answering the treatment questions, the nurses identified the patients by their date of birth. Then, the patients who consented to these procedures wrote down their date of birth by themselves. Answering the questionnaire and writing their own date of birth (if they permitted the nurse’s involvement) indicated written consent to participate in the study. The entire process was clearly explained in the questionnaire, and permission was received from the ethics review committee.
: Not applicable.
: The author declares that she has no competing interests.