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. 2019 Aug 2;9(8):e026666. doi: 10.1136/bmjopen-2018-026666

Table 1.

Organs at risk constraints

Rectum wall Bladder wall Urethra +3 mm
V27 Gy <2 cc
V12 Gy <20%
V27 Gy <5 cc
V12 Gy <15%
V24 Gy <30%
Dmax (35 mm3)<39 Gy
V36 Gy <1 cc