Contraceptive use and fertility levels in Sao Paulo State, Brazil.
D000293:Adolescent; D000328:Adult; D001723:Birth Rate; D001938:Brazil; D003267:Contraception; D005193:Family Planning Services; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008875:Middle Aged; D012424:Rural Population; D012959:Socioeconomic Factors; D014505:Urban Population