Fig. 4From: Utilization of anonymization techniques to create an external control arm for clinical trial dataOverall survival estimates for pseudonymized and anonymized data sets. A Kaplan–Meier estimates for overall survival from study entry in matched pseudonymized and anonymized real-world data sets and (B) Kaplan–Meier estimates for overall survival from study entry in non-matched (all except matched) pseudonymized and anonymized real world data setsBack to article page