The system of health and medical services for the aged in Japan.
D000367:Age Factors; D000368:Aged; D003710:Demography; D004470:Economics, Medical / Q000706:statistics & numerical data; D006268:Health Facilities; D006299:Health Services for the Aged / Q000458:organization & administration / Q000706:statistics & numerical data*; D006801:Humans; D007564:Japan; D008962:Models, Theoretical; D011153:Population; D012943:Social Security / Q000706:statistics & numerical data; D014798:Vital Statistics