Funding
The Japanese government Grants-in-Aid for Scientific Research (C) KAKEN HI (19K11157) funded the research in 2019–2022 (Japanese Government to Mariko Nishikawa, RN, MPH). The funders had no role in the study design, data collection or analysis, decision to publish, or preparation of the manuscript. The views expressed are those of the authors, who are employed by their affiliated universities.