Acknowledgments
The authors would like to thank J.H.W. de Vries and J.G. Bijzet-Marsman for their valuable contribution to the implementation of stereotactic body radiotherapy for spinal metastases in our department.
Disclosure statement
A.S. has received honorarium for educational seminars from Medtronic and Elekta and research support from Elekta, has participated on the medical advisory board for Varian Medical Systems, and has received honoraria for past educational seminars from Accuray and Medtronic. The other authors report no conflicts of interest.