Fig. 3From: Cost of simulation-based mastery learning for abdominal ultrasoundKaplan-Meier plot. The time spent on the ScanTrainer for trainees before attaining mastery learning level is demonstrated. Trainees that did not manage to attain a mastery learning level are displayed as censored. The time needed to reach mastery learning level ranged from 1h20min to 4h30min with a median of 2h38minBack to article page