Comparison of the pre-test and post-test scores after a one-time ultrasonography lecture. The changes in the test scores between the pre- and post-tests were statistically significant in the offline lecture in IM residents (A) and online lecture in IM residents (B). The changes in test scores between pre- and post-test were not significant in offline lectures in GI fellows (C) but significant in online lectures in GI fellows (D). IM, internal medicine; GI, gastroenterology.

Korean J Gastroenterol 2024;84:223~229 https://doi.org/10.4166/kjg.2024.096