Mental health: rural-urban comparisons.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology*; D008875:Middle Aged; D011156:Population Density; D011203:Poverty; D011581:Psychological Tests; D012424:Rural Population; D012744:Sex Ratio; D012922:Social Change; D014481:United States; D014505:Urban Population