Manpower resources and long-term illness and disability: an assessment.
D002908:Chronic Disease; D006233:Persons with Disabilities; D004641:Emigration and Immigration; D005190:Family; D005853:Geriatrics; D006281:Health Occupations; D049672:History, 19th Century; D049673:History, 20th Century; D006761:Hospitals / Q000266:history; D006801:Humans; D009735:Nursing Homes