Received: 2 February 2020
Accepted: 16 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: Along with the purpose and nature of the study, the following matters were explained in writing to each study subject and his/her family members: that no individual will be identified by any third parties throughout the period of the study, and that they can refuse participation in the study without any penalty or loss of benefits, because participation in the study would be purely voluntary. For study subjects incapable of giving consent, consent was obtained from the closest family members. For study subjects capable of giving consent, consent was obtained in writing from both the subject and his/her closest family member. The study was conducted with the approval of the Ethics Committee of the Japanese Red Cross Tokushima Hinomine Rehabilitation Center for People with Disabilities.
: Not applicable.
: The authors declare that they have no competing interests.