Figure 2: Randomization: N = 60 medical students were recruited and randomly assigned to two equally sized groups using random numbers generated by the Research Randomizer [https://www.randomizer.org]. Group A (EXP) = exposed group, B (CTR) = control group. Due to no-shows, the study started with n=55 participants (A: n=27; B: n=28); one participant of group A was lost to follow-up. Inclusion criteria: Age > 18 years, third year medical students at Heinrich Heine University Düsseldorf, internet access, declaration of consent to participate in the study. Exclusion criteria: Withdrawal of consent.