MO-0639 Variation in planned heart radiation dose in 5806 breast cancer patients in 2008-2014: A DBCG study. - Skars, E.R.; Refsgaard, L.H; Saini, A.; Lorenzen, E.L.; Maae, E.; Yates, E.; Jensen, I.; Andersen, K.; Boye, K.; Matthiessen, L.W.; Maraldo, M.; Berg, M.; et al. (Radiotherapy & Oncology, 2023)