1 Subjects: “...Political structure and processes...”

2 Subjects: “...protein structure...”

3 Subjects: “...spatial structure...”

4 Subjects: “...structural equation model...”

5 Subjects: “...structure...”

6 Subjects: “...structure...”

7 Subjects: “...structure...”

8 Subjects: “...population structure...”

9 “...The theoretical scientific approaches involve protein chemistry, structure-function relations...”

10