The Dutch-Belgian Registry of Stereotactic Body Radiation Therapy for Liver Metastases: Clinical Outcomes of 515 Patients and 668 Metastases. - Méndez Romero, Alejandra; Schillemans, Wilco; van Os, Rob; Koppe, Friederike; Haasbeek, Cornelis J.; Hendriksen, Ellen M.; Muller, Karin; Ceha, Heleen M.; Braam, Pètra M.; Reerink, Onne; Intven, Martijn P.M.; Joye, Ines; et al. (International Journal of Radiation Oncology, Biology, Physics, 2021)