title: The role of family planning in the world population crisis.
mesh_terms: D000029:Abortion, Legal; D001290:Attitude; D003153:Community Health Services; D003267:Contraception; D003906:Developing Countries; D005193:Family Planning Services; D006801:Humans; D011155:Population Control; D011158:Population Growth; D011639:Public Opinion; D013245:Sterilization, Reproductive; D006113:United Kingdom; D014481:United States