PO-0813: Cardiac Toxicity after Radiotherapy for Hodgkin Lymphoma: Impact of Breath Hold and Proton Therapy. (May 2017) - Rechner, L.A.; Maraldo, M.V.; Vogelius, I.R.; Petersen, P.M.; Zhu, R.X.; Dabaja, B.S.; Brodin, N.P.; Specht, L.; Aznar, M.C.