Old age and the quality of life.
D000368:Aged; D001290:Attitude; D001291:Attitude of Health Personnel; D003643:Death; D004032:Diet; D005534:Foot Diseases / Q000453:epidemiology; D005853:Geriatrics; D006266:Health Education; D005102:Health Expenditures; D006281:Health Occupations / Q000193:education; D006285:Health Planning; D006801:Humans; D006278:Medicare; D008508:Medication Errors; D009909:Oral Health; D011314:Preventive Health Services; D011787:Quality of Health Care; D012723:Sex; D012922:Social Change; D012938:Social Perception; D012940:Social Problems; D012945:Social Values; D013064:Speech Disorders / Q000453:epidemiology; D019966:Substance-Related Disorders; D013405:Suicide / Q000453:epidemiology; D014481:United States