PD-0419: Thoracic radiotherapy decreases right ventricle function: first results of the CLARIFY study. (November 2020) - Slager, E.; Wijsman, R.; Van Melle, J.P.; Hummel, Y.M.; Bussink, J.; Mohammed, N.; Willems, T.P.; Hoendermis, E.S.; Langendijk, J.A.; Muijs, C.T.; Van Luijk, P.