[Welfare and medical care of the aging society. 9. On the bedridden elderly (1). Definition and localization of the bedridden elderly].
D000368:Aged; D005851:Geriatric Nursing; D006299:Health Services for the Aged / Q000592:standards*; D006801:Humans; D007564:Japan; D011157:Population Dynamics; D012946:Social Welfare