Children and the elderly in the U.S.
D000342:Affective Symptoms / Q000453:epidemiology; D000368:Aged; D002648:Child; D004493:Education; D005102:Health Expenditures; D006801:Humans; D009026:Mortality; D010549:Personal Satisfaction; D011057:Politics; D011203:Poverty; D011787:Quality of Health Care; D013405:Suicide / Q000453:epidemiology