title: The yield of the imperfect: the 1970 National Fertility Study.
mesh_terms: D000028:Abortion, Induced; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D001290:Attitude; D002410:Catholicism; D003267:Contraception; D003276:Contraceptives, Oral; D004522:Educational Status; D004651:Employment; D005069:Evaluation Studies as Topic; D005260:Female; D005298:Fertility; D006801:Humans; D007182:Income; D007434:Intrauterine Devices; D008297:Male; D008393:Marriage; D011158:Population Growth; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D012071:Religion and Sex; D012737:Sex Factors; D013245:Sterilization, Reproductive; D014481:United States
chemical_list: D003276:Contraceptives, Oral