| CTCAE | common terminology criteria for adverse events |
| CIPN | chemotherapy-induced peripheral neuropathy |
| EQ VAS | self-evaluation of the health status measured by the visual analog scale |
| HRQOL | health-related quality of life |
| O3T | ozone treatment |
| Q1–Q3 | quartiles 1 and 3 |
| QOL | quality of life |
| RCT | randomized controlled trials |
| VAS | visual analog scale |