This has good general information on Polish culture as it relates to care. However, this document is from an Australian health service, so some of the organizations listed and demographic statistics are not relevant to the United States.
Kampo, or traditional Japanese medicine, is prescribed alongside Western medicine in Japan. This short article is an overview of Kampo.
Research Articles
Nakagawa, T., Cho, J., Gondo, Y., Martin, P., Johnson, M. A., Poon, L. W., & Hirose, N. (2018). Subjective well-being in centenarians: a comparison of Japan and the United States. Aging & Mental Health, 22(10), 1313–1320. https://doi.org/10.1080/13607863.2017.1348477
Fowler, J. (2018). From staff nurse to nurse consultant: Spiritual care part 10: Shinto. British Journal of Nursing, 27(2), 106. https://doi.org/10.12968/bjon.2018.27.2.106
Ito, M., & Sharts-Hopko, N. C. (2002). Japanese women’s experience of childbirth in the United States. Health Care for Women International, 23(6/7), 666–677. https://doi.org/10.1080/07399330290107412
Hansen, W. (2007). Eye on religion--Shinto and the Japanese attitude toward healing. Southern Medical Journal, 100(1), 118–119. https://doi.org/10.1097/SMJ.0b013e31802e41f1