MOESM3 of Teaching a difficult topic using a problem-based concept resembling a computer game: development and evaluation of an e-learning application for medical molecular genetics ProchazkovaKamila NovotnyPetr HancarovaMiroslava PrchalovaDarina SedlacekZdenek 2019 Additional file 3. Examples of students’ comments 1) from the posttest and 2) from previous runs of the application.