About the Authors

Yoshiaki Kanai

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Validation, Visualization, Writing – original draft

kanai-hongou@umin.ac.jp

Affiliations Palliative Care Center, TMG Asaka Medical Center, Saitama, Japan, Division of Palliative Medicine, The University of Tokyo Hospital, Tokyo, Japan

Hiroto Ishiki

Roles Data curation, Methodology, Supervision, Validation

Affiliation Department of Palliative Medicine, National Cancer Center Hospital, Tokyo, Japan

Isseki Maeda

Roles Data curation, Methodology, Supervision, Validation

Affiliation Gratia Hospice, Gratia Hospital, Osaka, Japan

Satoru Iwase

Roles Data curation, Methodology, Supervision, Validation

Affiliation Department of Palliative Medicine, Saitama Medical University, Saitama, Japan

Competing Interests

The authors have declared that no competing interests exist.