title: China's birth planning campaign leads to major birthrate decline in Shanghai, nation's largest city.
mesh_terms: D001723:Birth Rate; D002681:China; D003268:Contraception Behavior; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D011247:Pregnancy; D012927:Social Control, Informal; D014505:Urban Population