title: Patterns of aggregate and individual changes in contraceptive practice. United States, 1965-1975.
mesh_terms: D003267:Contraception / Q000379:methods*; D003268:Contraception Behavior; D003270:Contraceptive Agents; D003273:Contraceptive Devices / Q000706:statistics & numerical data; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D014481:United States
chemical_list: D003270:Contraceptive Agents