Residence background, migration, and fertility.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005006:Ethnicity; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D011157:Population Dynamics; D012111:Residence Characteristics; D012424:Rural Population; D014481:United States; D014505:Urban Population