Corrigendum: Abscopal Effects in Radio-Immunotherapy-Response Analysis of Metastatic Cancer Patients With Progressive Disease Under Anti-PD-1 Immune Checkpoint Inhibition - Maike Trommer; Maike Trommer; Maike Trommer; Sin Yuin Yeo; Sin Yuin Yeo; Thorsten Persigehl; Thorsten Persigehl; Anne Bunck; Anne Bunck; Holger Grüll; Holger Grüll; Max Schlaak; et al. (Frontiers Media S.A., 2020)