title: Duration of use of oral contraception in the United States, 1960-65.
mesh_terms: D000328:Adult; D000367:Age Factors; D001290:Attitude; D003270:Contraceptive Agents / Q000627:therapeutic use; D003276:Contraceptives, Oral / Q000009:adverse effects / Q000627:therapeutic use*; D004522:Educational Status; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D008599:Menstruation Disturbances / Q000139:chemically induced; D009325:Nausea / Q000139:chemically induced; D012494:Sampling Studies; D014481:United States
chemical_list: D003270:Contraceptive Agents; D003276:Contraceptives, Oral