title: [Sociology and demographic problems].
authors.forename: G
authors.initials: G
authors.lastname: Mathews
mesh_terms: D000569:Americas; D001723:Birth Rate; D002170:Canada; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005298:Fertility; D009656:North America; D011153:Population; D011157:Population Dynamics; D012942:Social Sciences; D012961:Sociology
keywords: Americas; Canada; Demographic Aging; Demographic Factors; Developed Countries; Fertility; Fertility Decline; International Migration; Migration; North America; Northern America; Population; Population Dynamics; Social Sciences; Sociology