[Birth planning being a historical trend of population evolution in China].
Yang
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D001208:Asia; D001723:Birth Rate; D002681:China; D003710:Demography; D003906:Developing Countries; D005202:Asia, Eastern; D009026:Mortality; D011057:Politics; D011153:Population; D011157:Population Dynamics; D011158:Population Growth; D011640:Public Policy; D012107:Research Design
Asia; Birth Rate; China; Demographic Factors; Developing Countries; Eastern Asia; Fertility Measurements; Measurement; Mortality; Policy; Political Factors; Population; Population Dynamics; Population Growth--changes; Population Policy; Social Policy