cancer patients treated with radical radiotherapy. Normal tissue complication probability
models were developed for late stool frequency and late rectal pain. Methods and materials
Population included 1336 patients, 3-year minimum follow-up, treated with 66–80 Gy.
Toxicity was scored with LENT-SOMA-scale. Two toxicity endpoints were considered:
grade⩾ 2 rectal pain and mean grade (average score during follow-up) in stool frequency> …