[We must seriously study the new situation in family planning].
D001208:Asia; D002681:China; D003710:Demography; D003906:Developing Countries; D004493:Education; D005193:Family Planning Services; D005202:Asia, Eastern; D008393:Marriage; D011153:Population; D011157:Population Dynamics; D011158:Population Growth; D012736:Sex Education
Asia; China; Demographic Factors; Developing Countries; Eastern Asia; Education; Family Planning; Family Planning Education; Marriage; Marriage Age; Marriage Patterns; Nuptiality; Population; Population Dynamics; Population Growth