Table 5.
Highly frequent keywords (150 times and more).
| Author Keyword | Frequency | Cluster |
|---|---|---|
| apoptosis | 457 | 1 |
| breast cancer | 485 | 1 |
| chemotherapy | 272 | 1 |
| curcumin | 181 | 1 |
| doxorubicin | 591 | 1 |
| lipid nanoparticles | 282 | 1 |
| liposomes | 3305 | 1 |
| lung cancer | 162 | 1 |
| paclitaxel | 269 | 1 |
| pharmacokinetics | 200 | 1 |
| cancer | 593 | 2 |
| cancer immunotherapy | 319 | 2 |
| melanoma | 151 | 2 |
| nanomedicine | 299 | 2 |
| photodynamic therapy | 282 | 2 |
| cancer therapy | 220 | 3 |
| drug delivery system | 1029 | 3 |
| nanoparticles | 917 | 3 |
| pancreatic cancer | 151 | 3 |
| targeted drug delivery | 553 | 3 |
| cationic liposomes | 282 | 4 |
| cytotoxicity | 498 | 4 |
| gene delivery | 576 | 4 |
| siRNA delivery | 399 | 4 |
| transfection | 182 | 4 |