title: A formula for the 1970s: estimating need for subsidized family planning services in the United States.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001723:Birth Rate; D003153:Community Health Services; D003267:Contraception / Q000379:methods; D003365:Costs and Cost Analysis; D005193:Family Planning Services; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008393:Marriage; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D012847:Single Person; D012959:Socioeconomic Factors; D013246:Sterilization, Tubal; D014481:United States