PO-0969: Inter-center variability of CT-to-SPR conversion in particle therapy: Survey-based evaluation. (April 2018) - Taasti, V.T.; Bäumer, C.; Dahlgren, C.V.; Deisher, A.J.; Ellerbrock, M.; Free, J.; Góra, J.; Kozera, A.; Lomax, A.J.; De Marzi, L.; Molinelli, S.; Teo, B.K.; et al.