1 Subjects: “...Heterocyclic Compounds, 3-Ring / economics...”

2 Subjects: “...Ring...”

3 Subjects: “...Ring, Jeremy...”

4 Subjects: “...engagement ring...”

5 Subjects: “...tree-rings...”

6 Subjects: “...tree-ring...”

7 Subjects: “...ring-shear test...”

8 Subjects: “...concentric-ring analysis...”

9 Subjects: “...tree-ring analysis...”

10 Subjects: “...neutrosophic ring...”

11 Subjects: “...tree rings...”

12 Subjects: “...isochronous rings...”

13 Subjects: “...vortex ring...”

14 Subjects: “...intra-ring variation...”

15 Subjects: “...neutrosophic quadruple rings...”