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Dosimetric constraints for both target and organs at risk proposed by GEC-ESTRO [49]
| Planning target volume | V100 > 95% | D90 > 100% |
| Dose to 2 cc of rectum | < 75 Gy equivalent at 2 Gy per fraction (EQD2) | |
| Dose to 0.1 cc or 10% of urethra | < 120 Gy EQD2 | |
| Dose to 30% of urethra | < 105 EQD2 |
