Economic development and population control.
D001942:Breast Feeding; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004467:Economics; D005193:Family Planning Services; D005298:Fertility; D007774:Lactation; D011057:Politics; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012922:Social Change
Biological Characteristics; Breast Feeding; Demographic Factors; Demographic Transition; Developed Countries; Developing Countries; Economic Development; Economic Factors; Family Planning; Fertility; Fertility Determinants; Intermediate Variables; Lactation; Political Factors; Population; Population Dynamics; Social Development; World; World Fertility Surveys