title: [Concerning demographic crises and catastrophes].
authors.forename: A
authors.initials: A
authors.lastname: Kvasha
mesh_terms: D003710:Demography; D019049:Developed Countries; D005060:Europe; D005061:Europe, Eastern; D008017:Life Expectancy; D008136:Longevity; D009026:Mortality; D011153:Population; D011157:Population Dynamics; D012426:Russia
keywords: Demographic Factors; Developed Countries; Eastern Europe; Europe; Length Of Life; Life Expectancy--men; Mortality; Population; Population Dynamics; Russia