1. Annual Report on the Aging Society 2017, Cabinet Office, Government of Japan.
http://www8.cao.go.jp/kourei/whitepaper/w-2017/html/zenbun/index.html
. Accessed 9 Feb 2018. (in Japanese)
2. “Innovative Cybernic System for a ZERO Intensive Nursing-care Society” project, ImPACT Program.
http://www.jst.go.jp/impact/en/program/05.html
. Accessed 5 Feb 2018
3. Sankai, Y., Suzuki, K., Hasegawa, Y. (eds.): Cybernics: Fusion of Human, Machine and Information Systems. Springer, Tokyo (2014).
https://doi.org/10.1007/978-4-431-54159-2
4. Gallagher, P., O’Mahony, D.: Constipation in old age. Best Pract. Res. Cl. Ga. 23(6), 875–887 (2009).
https://doi.org/10.1016/j.bpg.2009.09.001
5. Knight, J., Nigam, Y., Jones, A.: Effects of bedrest 2: gastrointestinal, endocrine, renal, reproductive and nervous systems. Nurs. Times 105(22), 24–27 (2009)