| 5-ALA | 5-aminolevulinic acid |
| APF | 3′-(p-aminophenyl) fluorescein |
| DHE | dihydroethidium |
| DSB | double-strand break |
| PDD | photodynamic diagnosis |
| PDT | photodynamic therapy |
| PpIX | protoporphyrin IX |
| RDT | radiodynamic therapy |
| ROS | reactive oxygen species |
| RT | radiotherapy |
| SB | strand break |
| SSB | single-strand break |