Statistical analysis
The data was analysed using the R software statistical package version 3.2.5 and the packages aod [The median and IQR were calculated for pre- and post-test, and a Wilcoxon signed-rank test was performed to compare the scores between them (paired samples). The Clustered Wilcoxon rank-sum test was performed to compare the scores between the quality of the patients’ medical records between the two groups (independent samples) [