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Overall survival and survival milestones for treated and untreated patients (matched cohort). Survival is measured from the date of metastatic diagnosis. Death dates were imputed to the 15th day of the month or, for patients who did not die during the study, data were censored at their last recorded, structured activity. The hazard ratio is from a Cox proportional hazards model, and the p value is from a log‐rank test. Abbreviations: CI, confidence interval
