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H
2
Social Sciences
demographic policy
1
differences among the settlements
1
fertility
1
gender differentiation
1
index method
1
life expectancy of population
1
migration
1
mortality by cause
1
natural population decline
1
northern regions
1
regional convergence of life expectancy
1
the age specific fertility rate
1
the age structure of population
1
the northern regions of russia
1
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