Rural fertility trends and differentials.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000383:Agriculture; D003267:Contraception; D004522:Educational Status; D005006:Ethnicity; D005260:Female; D005298:Fertility; D005843:Geography; D006801:Humans; D007182:Income; D008297:Male; D008393:Marriage; D009790:Occupations; D012424:Rural Population; D013997:Time Factors; D014481:United States; D014505:Urban Population