Legislation and demographic changes.
D000349:Africa; D003267:Contraception; D005193:Family Planning Services; D006801:Humans; D007391:International Cooperation; D038622:Internationality; D007603:Jurisprudence; D007878:Legislation as Topic; D009042:Motivation; D011155:Population Control; D011640:Public Policy; D012098:Reproduction; D012922:Social Change