MO-0641 Machine learning automated planning for rectal cancer VMAT: Model sharing and external validation. (May 2022) - Kierkels, R.; Arents-Huls, A.; de Boer, M.; Jeene, P.M.; den Hartogh, M.; Fransen, D.; Thulin, P.; Hölmstrom, M.; van der Wal, E.