| DESCRIPTORS | PAPERS | PERCENTAGE |
| Biomaterials | 1006 | 30% |
| Biomaterials × Biocompatibility | 1765 | 52% |
| Biomaterials × Cytotoxicity | 439 | 13% |
| Biomaterials × Biocompatibility × in vitro Cytotoxicity | 156 | 5% |
| TOTAL | 3366 | 100% |