Contouring Quality and Adherence to EORTC-based Protocol Guidelines in the Randomized Phase III SAKK 09/10 Trial for Postoperative Prostate Cancer Radiotherapy: Implications for Treatment Quality and Future Clinical Trials. - Beck, M.; Sassowsky, M.; Schär, S.; Mathier, E.; Halter, M.; Zwahlen, D.R.; Hölscher, T.; Arnold, W.; Polat, B.; Hildebrandt, G.; Mueller, A.C.; Putora, P.M.; et al. (International Journal of Radiation Oncology, Biology, Physics, 2020)