1 Subjects: “...Population / Economic aspects / fast...”

2 Subjects: “...population...”

3 Subjects: “...United States / Population / http://id.loc.gov/authorities/subjects/sh85140483...”

4 Subjects: “...initial population...”

5 Subjects: “...population migration...”

6 Subjects: “...population sizes...”

7 Subjects: “...the population at risk...”

8 Subjects: “...the population at risk...”

9 Subjects: “...population exposure to air pollutant...”

10 Subjects: “...aged populations...”

11 Subjects: “...population density...”

12 Subjects: “...urban population agglomeration...”

13 Subjects: “...natural population...”