title: Fertility drops in four large developing nations even prior to advances in economic development.
mesh_terms: D000293:Adolescent; D000328:Adult; D001723:Birth Rate; D003105:Colombia; D003906:Developing Countries; D004467:Economics; D005193:Family Planning Services; D005260:Female; D005298:Fertility; D006801:Humans; D007214:Indonesia; D010679:Philippines; D013785:Thailand