Search Strategy and Video Inclusion Criteria
The keywords ‘HoLEP’, ‘laser enucleation’ and ’prostate enucleation’ were used to conduct a search on YouTube (http://www.youtube.com) on December 16, 2020 without using any search filter. To reduce bias, all researchers performed the search by clearing their browser’s search history and disabling their location status. As the exclusion criteria for the study, videos shorter than 4 minutes, repetitive videos, those with irrelevant content (advertisements, patient references, slide-based presentations, and lectures) and non-English language videos were excluded from the study. A total of 1,416 videos were screened, and 1,156 videos were excluded from the study because they were non-English, irrelevant or non-audio. A further 143 videos were excluded due to duplication. Thus, the number of videos that were eligible was 117 (Figure 1).