1 Subjects: “...Point defects....”

2 Subjects: “...point defects...”

3 Subjects: “...point defects...”

4 Subjects: “...point defects...”

5 Subjects: “...point defects...”

6 Subjects: “...point defects...”

7 Subjects: “...silica point defects...”

8 Subjects: “...point defects...”

9 Subjects: “...point defects...”

10 Subjects: “...point defect...”