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. 2017 Jun 9;12:95. doi: 10.1186/s13014-017-0833-9

Table 2.

Dose constraints

Organ-at-risk Dose constraint
Rectum V27 < 2 cc
V12 < 20%
Bladder V27 < 5 cc
V12 < 15%
Intra-prostatic urethra V24 < 30%
V36 < 1 cc