PD-0900 Treating patients with a cardiac implant on a 1.5T MR-linac: a multi-centre experience. - Keesman, R.; van der Bijl, E.; Kerkmeijer, L.; Tyagi, N.; Akdag, O.; Wolthaus, J.; van de Pol, S.; Noteboom, J.; Intven, M.; Fast, M.; van Lier, A. (Radiotherapy & Oncology, 2023)