Fig. 2

The benefit of mind mapping in ECG reading. Group 2 and Group 3 from the normal classes, and Group 5 from the reformed class employed mind mapping in the module for ECG reading. Group 1 from the normal classes and group 4 from the reformed class were included as controls. A quiz of 15 ECG images was given right at the end of that session (A) and 2 weeks later (B). * p < 0.05 compared with group 1; ## p < 0.01 compared with group 4; ### p < 0.005 compared with group 4