[The demographic challenge].
Schwartz
J
J
D000349:Africa; D017677:Age Distribution; D000367:Age Factors; D003710:Demography; D003906:Developing Countries; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011158:Population Growth; D011640:Public Policy
Africa; Age Distribution; Age Factors; Demographic Factors; Developing Countries; Policy; Population; Population Characteristics; Population Dynamics; Population Growth; Population Policy; Social Policy