“…In a recent 'Choosing Wisely Oncology Canada' survey, albeit in a high-income country, the recommendation of SRS over WBRT for brain metastases was the highest ranked as a potential new recommendation. 66 SRS proponents have stated that with the advent of new effective systemic therapies such as immunotherapy and targeted therapy, WBRT will even become obsolete. 67 Such statements, however, are misleading.…”